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Barriers and facilitators in antenatal settings to screening and referral of pregnant women who use alcohol or other drugs: A qualitative study of midwives’ experience

Screening pregnant women for substance use is highly recommended in antenatal care settings. Although midwives provide routine screening for substance use and referral for treatment in pregnancy, little is known about the barriers and facilitators they experience.

Workplace ostracism in healthcare: Association with job satisfaction, stress, and perceived health

Abstract

Aims

To examine (1) the association between healthcare workers' workplace ostracism and job satisfaction, stress and perceived health, and (2) whether this relationship is mediated by loneliness and self-esteem.

Design

A cross-sectional study.

Methods

Healthcare (N = 569) managers and employees (nurses, practical nurses, doctors and social workers) in Finland responded to a semi-structured survey in January 2021 and evaluated their experiences of workplace ostracism, job satisfaction, stress, perceived health, loneliness and self-esteem during the last year. To examine the association of these variables, linear regression and mediator model tests were performed.

Results

Workplace ostracism had a clear direct association with job satisfaction, stress and perceived health. Loneliness fully mediated the relationship between workplace ostracism, stress and perceived health, and partly mediated the association between workplace ostracism and job satisfaction. Self-esteem partly mediated the association between workplace ostracism, stress, job satisfaction and perceived health.

Conclusion

The experience of workplace ostracism in organizations is a significant factor in job satisfaction, stress and perceived health. Healthcare organizations could strengthen job satisfaction and increase workers' well-being by strengthening social relationships in the organization and, via that, reducing turnover intention.

Implications for the profession and patient care

This study gives understanding and information to the healthcare profession on how workplace ostracism affects work well-being and workplace relationships. Workplace ostracism decreases interaction, which can also endanger patient care if information is not openly exchanged.

Impact

This study indicated that workplace ostracism weakened job satisfaction more than loneliness. More commonality and consideration for others at work are needed because these factors may help increase work well-being and decrease exits from working life. Further research is needed on why workplace ostracism occurs in healthcare workplaces.

Reporting Method

STROBE.

Patient or Public Contribution

No patient or public contribution.

'They say: medical students perceptions of General Practice, experiences informing these perceptions, and their impact on career intention--a qualitative study among medical students in England

Por: Banner · K. · Alberti · H. · Khan · S. A. · Jones · M. M. · Pope · L. M.
Objectives

The number of UK graduates choosing General Practice training remains significantly lower than the current numbers required to meet the demands of the service. This work aims to explore medical students’ perceptions of General Practice, experiences which lead to the development of these perceptions, and the ultimate impact of these on career intention.

Design

This mixed-methods, qualitative study used focus groups, semistructured interviews, longitudinal audio diary data and debrief interviews to explore and capture the experiences and perceptions of students in their first and penultimate years of university.

Setting

Three English medical schools.

Participants

Twenty students were recruited to focus groups from first and fourth/fifth year of study. All students in these years of study were invited to attend. Six students were recruited into the longitudinal diary study to further explore their experiences.

Results

This work identified that external factors, internal driving force and the ‘they say’ phenomenon were all influential on the development of perceptions and ultimately career intention. External factors may be split into human or non-human influences, for example, aspirational/inspirational seniors, family, peers (human), placements and ‘the push’ of GP promotion (non-human). Driving force refers to internal factors, to which the student compares their experiences in an ongoing process of reflection, to understand if they feel General Practice is a career they wish to pursue. The ‘they say’ phenomenon refers to a passive and pervasive perception, without a known source, whereby usually negative perceptions circulate around the undergraduate community.

Conclusion

Future strategies to recruit graduates to General Practice need to consider factors at an undergraduate level. Positive placement experiences should be maximised, while avoiding overtly ‘pushing’ GP onto students.

Altered serum TNF-α and MCP-4 levels are associated with the pathophysiology of major depressive disorder: A case-control study results

by Jannatul Nayem, Rapty Sarker, A. S. M. Roknuzzaman, M. M. A. Shalahuddin Qusar, Sheikh Zahir Raihan, Md. Rabiul Islam, Zobaer Al Mahmud

Background

Major Depressive Disorder (MDD) is a debilitating mental health condition with complex etiology, and recent research has focused on pro-inflammatory cytokines and chemokines as potential contributors to its pathogenesis. However, studies investigating the roles of TNF-α and MCP-4 in MDD within the Bangladeshi population are scarce. This study aimed to assess the association between serum TNF-α and MCP-4 levels and the severity of MDD, exploring their potential as risk indicators for MDD development.

Methods

This case-control study enrolled 58 MDD patients from Bangabandhu Sheikh Mujib Medical University (BSMMU) Hospital, Dhaka, Bangladesh, alongside 30 age, sex, and BMI-matched healthy controls. MDD diagnosis followed DSM-5 criteria and disease severity using the 17-item Hamilton Depression Rating Scale (Ham-D). We measured serum TNF-α and MCP-4 levels using ELISA assays according to the supplied protocols.

Results

The study revealed significantly elevated serum TNF-α levels in MDD patients (47±6.6 pg/ml, mean±SEM) compared to controls (28.06±1.07 pg/ml). These increased TNF-α levels positively correlated with Ham-D scores (Pearson’s r = 0.300, p = 0.038), suggesting a potential association between peripheral TNF-α levels and MDD pathology. Additionally, MDD patients exhibited significantly higher serum MCP-4 levels (70.49±6.45 pg/ml) than controls (40.21±4.08 pg/ml). However, serum MCP-4 levels showed a significant negative correlation (r = -0.270, P = 0.048) with Ham-D scores in MDD patients, indicating a more complex role for MCP-4 in MDD pathogenesis.

Conclusion

This study highlights that Bangladeshi MDD patients exhibit heightened inflammatory and immune responses compared to controls, supporting the cytokine hypothesis in MDD pathogenesis. Serum TNF-α, but not MCP-4, shows promise as a potential biomarker for assessing the risk of MDD development, which could aid in early detection. Future investigations involving larger populations and longitudinal studies are essential to confirm the utility of these cytokines as biomarkers for MDD.

Patterns, prevalence and risk factors of intimate partner violence and its association with mental health status during COVID-19: a cross-sectional study on early married female adolescents in Khulna district, Bangladesh

Por: Nishat · J. F. · Khan · U. S. · Shovo · T.-E.-A. · Ahammed · B. · Rahman · M. M. · Hossain · M. T.
Objectives

This study was designed to identify the patterns, prevalence and risk factors of intimate partner violence (IPV) against female adolescents and its association with mental health problems.

Design

Cross-sectional survey.

Settings

Dumuria Upazila (subdistrict) under the Khulna district of Bangladesh.

Participants

A total of 304 participants were selected purposively based on some specifications: they must be female adolescents, residents of Dumuria Upazila and married during the COVID-19 pandemic when under 18 years of age.

Outcome measures

By administering a semi-structured interview schedule, data were collected regarding IPV using 12 five-point Likert scale items; a higher score from the summation reflects frequent violence.

Results

The findings suggest that the prevalence of physical, sexual and emotional IPV among the 304 participants, who had an average age of 17.1 years (SD=1.42), was 89.5%, 87.8% and 93.7%, respectively, whereas 12.2% of the participants experienced severe physical IPV, 9.9% experienced severe sexual IPV and 10.5% experienced severe emotional IPV. Stepwise regression models identified age at marriage (p=0.001), number of miscarriages (p=0.005), education of spouse (p=0.001), income of spouse (p=0.016), age gap between spouses (p=0.008), marital adjustment (p

Conclusion

During the COVID-19 pandemic, an increase in IPV and mental health problems among early married adolescents was documented. To reduce physical and mental harm and to assure their well-being, preventive and rehabilitative measures should be devised.

Experience of an NIHR Clinical Lectureship (medical/dental) and the determining factors for a clinical academic career post lectureship: a mixed-method evaluation

Por: Stevenson · C. J. · Harris-Joseph · H. · Harper · L. · Hewison · J. · Mulvey · M. R. · Heuvelman · H. · McVicker · C. · Razalan · M. M. · Knowles · E. · Ebanks · B. · Lee · K. · Fenton · J. · Thompson · P. · Cotterill · L. A.
Objectives

The objective of this study is to investigate early-to-late postdoctoral clinical academic progression and the experiences of NIHR Clinical Lectureship (CL) fellows, considering enablers and barriers to success, and identifying the factors associated with immediate progression to a clinical academic role following completion of the award.

Setting

Datasets of CL awardees across the UK.

Participants

For semistructured interviews, n=40 CL awardees that had finished their award within the previous 5 years. For quantitative analysis, n=1226 completed or currently active CL awardees.

Outcome measures

The responses from the semistructured interviews to the defined questions on experiences during the award, postaward progression, and enablers and barriers to academic progression. Other primary outcome measures were quantitative data on first destinations postaward, demographic data, and whether an awardee had previously held an NIHR Academic Clinical Fellowship (ACF) or was a recipient of the Academy of Medical Sciences (AMS) Starter Grant.

Results

CL awardees identified numerous benefits to the award, with the majority achieving their aims. Most awardees progressed to a clinical academic role; however, some returned to a clinical only position, citing concerns around the time pressure associated with balancing clinical and academic responsibilities, and the competition to attain further postdoctoral awards. The region of the award partnership, year of award end and success in applying for an AMS Starter Grant were associated with progression to a clinical academic role. Gender, holding an ACF and having a craft or non-craft specialty had no independent statistical association with clinical academic progression.

Conclusions

The CL is a valued element of the Integrated Academic Pathway. By addressing issues around later postdoctoral progression opportunities, responding to challenges experienced by CLs, and by understanding the factors identified in this study associated with clinical academic progression, it should be possible to increase the proportion of CLs that become fully independent clinical academic research leaders.

Participants

1226 NIHR CLs active or completed on the award between 2006 and 2020.

Enhancing care quality and accessibility through digital technology-supported decentralisation of hypertension and diabetes management: a proof-of-concept study in rural Bangladesh

Por: Xie · W. · Paul · R. R. · Goon · I. Y. · Anan · A. · Rahim · A. · Hossain · M. M. · Hersch · F. · Oldenburg · B. · Chambers · J. · Mridha · M. K.
Objective

The critical shortage of healthcare workers, particularly in rural areas, is a major barrier to quality care for non-communicable diseases (NCD) in low-income and middle-income countries. In this proof-of-concept study, we aimed to test a decentralised model for integrated diabetes and hypertension management in rural Bangladesh to improve accessibility and quality of care.

Design and setting

The study is a single-cohort proof-of-concept study. The key interventions comprised shifting screening, routine monitoring and dispensing of medication refills from a doctor-managed subdistrict NCD clinic to non-physician health worker-managed village-level community clinics; a digital care coordination platform was developed for electronic health records, point-of-care support, referral and routine patient follow-up. The study was conducted in the Parbatipur subdistrict, Rangpur Division, Bangladesh.

Participants

A total of 624 participants were enrolled in the study (mean (SD) age, 59.5 (12.0); 65.1% female).

Outcomes

Changes in blood pressure and blood glucose control, patient retention and patient-visit volume at the NCD clinic and community clinics.

Results

The proportion of patients with uncontrolled blood pressure reduced from 60% at baseline to 26% at the third month of follow-up, a 56% (incidence rate ratio 0.44; 95% CI 0.33 to 0.57) reduction after adjustment for covariates. The proportion of patients with uncontrolled blood glucose decreased from 74% to 43% at the third month of follow-up. Attrition rates immediately after baseline and during the entire study period were 29.1% and 36.2%, respectively.

Conclusion

The proof-of-concept study highlights the potential for involving lower-level primary care facilities and non-physician health workers to rapidly expand much-needed services to patients with hypertension and diabetes in Bangladesh and in similar global settings. Further investigations are needed to evaluate the effectiveness of decentralised hypertension and diabetes care.

Are pharmacists on the front lines of the opioid epidemic? A cross-sectional study of the practices and competencies of community and hospital pharmacists in Punjab, Pakistan

Por: Mubarak · N. · Zahid · T. · Rana · F. R. · Ijaz · U.-E.-B. · Shabbir · A. · Manzoor · M. · Khan · N. · Arif · M. · Naeem · M. M. · Kanwal · S. · Saif-ur-Rehman · N. · Zin · C. S. · Mahmood · K. · Asgher · J. · Elnaem · M. H.
Introduction

Countries are grappling with a rapidly worsening upsurge in the opioid-related overdose deaths, misuse and abuse. There is a dearth of data in Pakistan regarding the practices and competencies of pharmacists in handling opioid-related issues.

Study design

A cross-sectional study, conducted across Punjab, Pakistan.

Method

The study deployed a validated survey to evaluate the competencies and practices of the community and hospital pharmacists.

Results

504 community pharmacists and 279 hospital pharmacists participated in the survey with an overall response rate of 85.5%. Almost half of the respondents ‘never’ or ‘sometimes’ made clinical notes in a journal or dispensing software to monitor ongoing opioid use. Generally, pharmacists were reluctant to collaborate with physicians or notify police regarding the abuse/misuse of opioids. Hospital pharmacists achieved significantly higher mean competency scores than chain and independent community pharmacists (p

Conclusion

Both community and hospital pharmacists hold significant positions and potential to contribute meaningfully to the mitigation of harms and risks associated with opioids. Nevertheless, this study underscores notable deficiencies in the competence of pharmacists, whether in hospital or community settings in Punjab, concerning various aspects related to the dispensing and utilisation of opioids. It also highlights the pressing need for the development of strategies aimed at improving several practice areas including the documentation, the quality of patient counselling, the effectiveness of reporting mechanisms for opioid abuse and the stringent enforcement of regulatory policies to curtail opioid misuse. Thus, to mitigate the opioid epidemic in Pakistan, it is imperative to institute opioid stewardship initiatives aimed at rectifying the competency and procedural deficiencies within the pharmacist workforce.

Continuation of education after marriage and its associated factors among young adult women: findings from the Bangladesh Demographic and Health Survey 2017-2018

Por: Howlader · S. · Rahman · M. A. · Rahman · M. M.
Objective

To identify the individual and community-level variables associated with the continuation of education among currently married young adult women in Bangladesh.

Design

Cross-sectional data extracted from the Bangladesh Demographic and Health Survey (BDHS), 2017–2018. The BDHS is a stratified cluster sample of households conducted in two and three stages in both rural and urban settings. A multilevel multinomial logistic regression analysis was employed to identify the associated factors.

Setting

Bangladesh.

Participants

Currently married young adult women aged 15–29 years (n=4595).

Primary outcome

Continuation of education after marriage was measured in the BDHS by asking respondents, ‘Did you continue your studies after marriage?’ with the response options: no; yes, less than a year; yes, for 1–2 years; yes, for 3–4 years; and yes, for 5+ years.

Results

Among young adult women, 28.2% continued education after marriage for different durations of years (

Conclusions

The proportion of women continuing their education after marriage in this sample is low. This study provides insight into the individual-level and community-level barriers women encounter in continuing their education after marriage. The identification of these barriers helps policy-makers develop effective intervention programmes to promote women’s educational attainment.

The burden of non-disabled frailty and its associated factors among older adults in Bangladesh

by Sabuj Kanti Mistry, A. R. M. Mehrab Ali, Uday Narayan Yadav, Saruna Ghimire, Afsana Anwar, Md. Nazmul Huda, Fouzia Khanam, Rashidul Alam Mahumud, Ateeb Ahmad Parray, Shovon Bhattacharjee, David Lim, Mark Fort Harris

Objective

The present study aims to measure the prevalence of non-disabled frailty and its associated factors among Bangladeshi older adults.

Methods

This cross-sectional study was conducted during September and October 2021 among 1,045 Bangladeshi older adults (≥60 years). Telephone interviews, using a semi-structured questionnaire, were undertaken to collect data on participants’ characteristics and level of frailty. The non-disabled frailty was measured using the ‘Frail Non-Disabled (FiND)’ questionnaire. A multinomial logistic regression model assessed the factors associated with frailty among the participants.

Results

Around a quarter of the participants (24.8%) were frail. The multinomial regression analysis showed that older participants aged ≥80 years (RRR = 3.23, 95% CI: 1.41–7.37) were more likely to be frail compared to participants aged 60–69 years. Likewise, the participants living in a large family with ≥4 members (RRR = 1.39, 95% CI: 1.01–1.92) were more likely to be frail compared to those living in smaller families. Also, participants having memory or concentration problems (RRR = 1.56, 95% CI: 1.12–2.17) were more likely to be frail compared to those who were not suffering from these problems. Moreover, participants whose family members were non-responsive to their day-to-day assistance (RRR = 1.47, 95% CI: 1.06–2.03) were more likely to be frail compared to those whose family members were responsive. Furthermore, participants who were feeling lonely (RRR = 1.45, 95% CI: 1.07–1.98) were more likely to be frail than their counterparts who were not feeling lonely.

Conclusions

The findings of the present study suggest developing tailored interventions to address the burden of frailty among the older populations in Bangladesh. In particular, providing long-term care and health promotion activities can be of value in preventing frailty and reducing adverse health outcomes among this vulnerable population group.

Cumulative violence exposures among men who have sex with men living with HIV in India: Psychosocial correlates of HIV care continuum outcomes

by Bushra Sabri, Chakra Budhathoki, Allison M. McFall, Shruti H. Mehta, David D. Celentano, Sunil S. Solomon, Aylur K. Srikrishnan, Santhanam Anand, Canjeevaram K. Vasudevan, Gregory M. Lucas

Lifetime exposures to violence among men who have sex with men (MSM) are associated with multiple psychosocial health risks and can affect engagement and outcomes of HIV treatment. This study a) explored relationships between levels of exposures to violence and HIV care continuum outcomes among MSM living with HIV in India, and b) identified psychosocial correlates of HIV care continuum outcomes among MSM living with HIV and those with lifetime cumulative exposures to violence (CVE). CVE referred to exposures to violence in both childhood and adulthood. This cross-sectional analysis used survey data collected between August 2016 and May 2017 from 1763 men who have sex with men living with HIV across 10 cities in India, using respondent-driven sampling. We found that higher levels of violence exposure were significantly associated with lower awareness of HIV positive status, and lower likelihood of initiating antiretroviral therapy. Compared with MSM living with HIV that had no CVE, those with CVE were more likely to report perpetration of interpersonal violence, alcohol misuse, depressive symptoms, and HIV transmission risk behaviors and to have two to four co-occurring psychosocial problems. In multivariable analysis with the subset of MSM with CVE, psychosocial correlates significantly associated with at least one HIV care continuum outcome were HIV transmission risk behaviors, perpetration of interpersonal violence, depression, and alcohol misuse. The findings highlight the need for integrating care for lifetime violence exposures and associated behavioral problems in HIV care settings for men who have sex with men living with HIV in India.

Does atrial fibrillation affect prognosis in hospitalised COVID-19 patients? A multicentre historical cohort study in the Netherlands

Por: Spruit · J. R. · Jansen · R. W. M. M. · de Groot · J. R. · de Vries · T. A. C. · Hemels · M. E. W. · Douma · R. A. · de Haan · L. R. · Brinkman · K. · Moeniralam · H. S. · de Kruif · M. · Dormans · T. · Appelman · B. · Reidinga · A. C. · Rusch · D. · Gritters van den Oever · N. C.
Objectives

The aim of this multicentre COVID-PREDICT study (a nationwide observational cohort study that aims to better understand clinical course of COVID-19 and to predict which COVID-19 patients should receive which treatment and which type of care) was to determine the association between atrial fibrillation (AF) and mortality, intensive care unit (ICU) admission, complications and discharge destination in hospitalised COVID-19 patients.

Setting

Data from a historical cohort study in eight hospitals (both academic and non-academic) in the Netherlands between January 2020 and July 2021 were used in this study.

Participants

3064 hospitalised COVID-19 patients >18 years old.

Primary and secondary outcome measures

The primary outcome was the incidence of new-onset AF during hospitalisation. Secondary outcomes were the association between new-onset AF (vs prevalent or non-AF) and mortality, ICU admissions, complications and discharge destination, performed by univariable and multivariable logistic regression analyses.

Results

Of the 3064 included patients (60.6% men, median age: 65 years, IQR 55–75 years), 72 (2.3%) patients had prevalent AF and 164 (5.4%) patients developed new-onset AF during hospitalisation. Compared with patients without AF, patients with new-onset AF had a higher incidence of death (adjusted OR (aOR) 1.71, 95% CI 1.17 to 2.59) an ICU admission (aOR 5.45, 95% CI 3.90 to 7.61). Mortality was non-significantly different between patients with prevalent AF and those with new-onset AF (aOR 0.97, 95% CI 0.53 to 1.76). However, new-onset AF was associated with a higher incidence of ICU admission and complications compared with prevalent AF (OR 6.34, 95% CI 2.95 to 13.63, OR 3.04, 95% CI 1.67 to 5.55, respectively).

Conclusion

New-onset AF was associated with an increased incidence of death, ICU admission, complications and a lower chance to be discharged home. These effects were far less pronounced in patients with prevalent AF. Therefore, new-onset AF seems to represent a marker of disease severity, rather than a cause of adverse outcomes.

Metformin for knee osteoarthritis with obesity: study protocol for a randomised, double-blind, placebo-controlled trial

Por: Lim · Y. Z. · Wang · Y. · Urquhart · D. M. · Estee · M. M. · Wluka · A. E. · Heritier · S. · Cicuttini · F. M.
Introduction

Over half of the populations with knee osteoarthritis (OA) have obesity. These individuals have many other shared metabolic risk factors. Metformin is a safe, inexpensive, well-tolerated drug that has pleiotropic effects, including structural protection, anti-inflammatory and analgesic effects in OA, specifically the knee. The aim of this randomised, double-blind, placebo-controlled trial is to determine whether metformin reduces knee pain over 6 months in individuals with symptomatic knee OA who are overweight or obese.

Methods and analysis

One hundred and two participants with symptomatic knee OA and overweight or obesity will be recruited from the community in Melbourne, Australia, and randomly allocated in a 1:1 ratio to receive either metformin 2 g or identical placebo daily for 6 months. The primary outcome is reduction of knee pain [assessed by 100 mm Visual Analogue Scale (VAS)] at 6 months. The secondary outcomes are OMERACT-OARSI (Outcome Measures in Rheumatology-Osteoarthritis Research Society International) responder criteria [Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain, function and participant’s global assessment (VAS)] at 6 months; change in knee pain, stiffness, function using WOMAC at 6 months and quality of life at 6 months. Adverse events will be recorded. The primary analysis will be by intention to treat, including all participants in their randomised groups.

Ethics and dissemination

Ethics approval has been obtained from the Alfred Hospital Ethics Committee (708/20) and Monash University Human Research Ethics Committee (28498). Written informed consent will be obtained from all the participants. The findings will be disseminated through peer-review publications and conference presentations.

Trial registration number

ACTRN12621000710820 .

Test negative case-control study of COVID-19 vaccine effectiveness for symptomatic SARS-CoV-2 infection among healthcare workers: Zambia, 2021-2022

Por: Mweso · O. · Simwanza · J. · Malambo · W. · Banda · D. · Fwoloshi · S. · Sinyange · N. · Yoo · Y. M. · Feldstein · L. R. · Kapina · M. · Mulenga · L. B. · Liwewe · M. M. · Musonda · K. · Kapata · N. · Mwansa · F. D. · Agolory · S. · Bobo · P. · Hines · J. · Chilengi · R.
Objectives

The study aim was to evaluate vaccine effectiveness (VE) of COVID-19 vaccines in preventing symptomatic COVID-19 among healthcare workers (HCWs) in Zambia. We sought to answer the question, ‘What is the vaccine effectiveness of a complete schedule of the SARS-CoV-2 vaccine in preventing symptomatic COVID-19 among HCWs in Zambia?’

Design/setting

We conducted a test-negative case–control study among HCWs across different levels of health facilities in Zambia offering point of care testing for COVID-19 from May 2021 to March 2022.

Participants

1767 participants entered the study and completed it. Cases were HCWs with laboratory-confirmed SARS-CoV-2 and controls were HCWs who tested SARS-CoV-2 negative. Consented HCWs with documented history of vaccination for COVID-19 (vaccinated HCWs only) were included in the study. HCWs with unknown test results and unknown vaccination status, were excluded.

Primary and secondary outcome measures

The primary outcome was VE among symptomatic HCWs. Secondary outcomes were VE by: SARS-CoV-2 variant strains based on the predominant variant circulating in Zambia (Delta during May 2021 to November 2021 and Omicron during December 2021 to March 2022), duration since vaccination and vaccine product.

Results

We recruited 1145 symptomatic HCWs. The median age was 30 years (IQR: 26–38) and 789 (68.9%) were women. Two hundred and eighty-two (24.6%) were fully vaccinated. The median time to full vaccination was 102 days (IQR: 56–144). VE against symptomatic SARS-CoV-2 infection was 72.7% (95% CI: 61.9% to 80.7%) for fully vaccinated participants. VE was 79.4% (95% CI: 58.2% to 90.7%) during the Delta period and 37.5% (95% CI: –7.0% to 63.3%) during the Omicron period.

Conclusions

COVID-19 vaccines were effective in reducing symptomatic SARS-CoV-2 among Zambian HCWs when the Delta variant was circulating but not when Omicron was circulating. This could be related to immune evasive characteristics and/or waning immunity. These findings support accelerating COVID-19 booster dosing with bivalent vaccines as part of the vaccination programme to reduce COVID-19 in Zambia.

Suppression of pathogens in properly refrigerated raw milk

by M. E. Coleman, T. P. Oscar, T. L. Negley, M. M. Stephenson

Conflicting claims exist regarding pathogen growth in raw milk. A small pilot study was designed to provide definitive data on trends for pathogen growth and decline in raw bovine milk hygienically produced for direct human consumption. An independent laboratory conducted the study, monitoring growth and decline of pathogens inoculated into raw milk. Raw milk samples were inoculated with foodborne pathogens (Campylobacter, E. coli O157:H7, Listeria monocytogenes, or Salmonella) at lower (L. monocytogenes in 8 of 12 replicates (P = 0.001 to P = 0.028). Analysis of variance confirmed significant increases for L. monocytogenes at both initial levels in week 2. No evidence of growth was documented over 14 days for the three pathogens predominantly associated with raw milk outbreaks in the US (Campylobacter, E. coli O157:H7, and Salmonella). Further research is needed to characterize parameters for pathogen growth and decline to support re-assessment of risks that were based on incorrect assumptions about interactions of pathogens with the raw milk microbiota.

Comparative analysis of silver-nanoparticles and whey-encapsulated particles from olive leaf water extracts: Characteristics and biological activity

by Hanem M. M. Mansour, Mohamed G. Shehata, Eman M. Abdo, Mona Mohamad Sharaf, El-sayed E. Hafez, Amira M. Galal Darwish

Nanotechnology applications have been employed to improve the stability of bioactive components and drug delivery. Natural-based extracts, especially olive leaf extracts, have been associated with the green economy not only as recycled agri-waste but also in the prevention and treatment of various non-communicable diseases (NCDs). The aim of this work was to provide a comparison between the characteristics, biological activity, and gene expression of water extract of olive leaves (OLE), green synthesized OLE silver nanoparticles (OL/Ag-NPs), and OLE whey protein capsules (OL/WPNs) of the two olive varieties, Tofahy and Shemlali. The particles were characterized by dynamic light scattering, scanning electron microscope (SEM), and Fourier transform infrared. The bioactive compounds of the preparations were evaluated for their antioxidant activity and anticancer effect on HCT-116 colorectal cells as well as for their regulatory effects on cytochrome C oxidase (Cox1) and tumor necrosis factor α (TNF-α) genes. (OL/Ag-NPs) were found to be smaller than (OL/WPNs) with sizes of (37.46±1.85 and 44.86±1.62 nm) and (227.20±2.43 and 553.02±3.60 nm) for Tofahy and Shemlali, respectively. SEM showed that Shemlali (OL/Ag-NPs) had the least aggregation due to their highest Ƹ-potential (-31.76 ± 0.87 mV). The preparations were relatively nontoxic to Vero cells (IC50 = 151.94–789.25 μg/mL), while they were cytotoxic to HCT-116 colorectal cells (IC50 = 77.54–320.64 μg/mL). Shemlali and Tofahy OLE and Tofahy OL/Ag-NPs had a higher selectivity index (2.97–7.08 μg/mL) than doxorubicin (2.36 μg/mL), indicating promising anticancer activity. Moreover, Shemlali preparations regulated the expression of Cox1 (up-regulation) and TNF-α (down-regulation) on HCT-116 cells, revealing their efficiency in suppressing the expression of genes that promote cancer cell proliferation. (OL/Ag-NPs) from Tofahy and Shemlali were found to be more stable, effective, and safe than (OL/WPNs). Consequently, OL/Ag-NPs, especially Tofahy, are the best and safest nanoscale particles that can be safely used in food and pharmaceutical applications.

Socio-economic inequalities in and factors associated with minimum dietary diversity among children aged 6-23 months in South Asia: a decomposition analysis

Por: Rahman · M. A. · Kundu · S. · Rashid · H. O. · Tohan · M. M. · Islam · M. A.
Objective

This study aimed to determine the factors associated with minimum dietary diversity (MDD) and estimate the socioeconomic inequalities in MDD among children from five South Asian countries.

Design

Cross-sectional.

Setting

The study used the most recent round of secondary databases of Demographic Health Survey data of Bangladesh (2017–2018), India (2019–2021), Maldives (2016–2017), Nepal (2018) and Pakistan (2017–2018).

Participants

This study used information on MDD and other explanatory variables from a total of 136 980 (weighted) children aged 6–23 months.

Methods

Multivariable logistic regression was employed to identify the factors associated with MDD and concentration index (CIX) and Lorenz curve were used to measure the socioeconomic inequalities in MDD.

Results

The overall weighted prevalence of MDD in South Asia was 23.37%. The highest prevalence of MDD was found among children from Maldives (70.7%), while the lowest was in Pakistan (14.2%). Living in affluent versus poor households, having a mother who is employed versus a mother who is unemployed, exposure to various forms of media (newspapers and magazines), seeking antenatal care (ANC) more than four times compared with those who sought ANC less than four times and having children older than 4 years old are the most common significant factors associated with MDD deficiency. This study found the value of the CIX for MDD (MDD: CI=0.0352; p

Conclusion

Inequality in the prevalence of MDD favours the affluent. Health policy and intervention design should prioritise minimising socioeconomic inequalities concerning the MDD. In addition, policy-makers should prioritise the associated factors of MDD such as education, wealth status, employment, media exposure while designing intervention or policies.

Protection of the third-dose and fourth-dose mRNA vaccines against SARS-CoV-2 Omicron subvariant: a systematic review and meta-analysis

Por: Rahman · M. O. · Kamigaki · T. · Thandar · M. M. · Haruyama · R. · Yan · F. · Shibamura-Fujiogi · M. · Khin Maung Soe · J. · Islam · M. R. · Yoneoka · D. · Miyahara · R. · Ota · E. · Suzuki · M.
Objectives

The rapid spread of the SARS-CoV-2 Omicron variant has raised concerns regarding waning vaccine-induced immunity and durability. We evaluated protection of the third-dose and fourth-dose mRNA vaccines against SARS-CoV-2 Omicron subvariant and its sublineages.

Design

Systematic review and meta-analysis.

Data sources

Electronic databases and other resources (PubMed, Embase, CENTRAL, MEDLINE, CINAHL PLUS, APA PsycINFO, Web of Science, Scopus, ScienceDirect, MedRxiv and bioRxiv) were searched until December 2022.

Study eligibility criteria

We included studies that assessed the effectiveness of mRNA vaccine booster doses against SARS-CoV-2 infection and severe COVID-19 outcomes caused by the subvariant.

Data extraction and synthesis

Estimates of vaccine effectiveness (VE) at different time points after the third-dose and fourth-dose vaccination were extracted. Random-effects meta-analysis was used to compare VE of the third dose versus the primary series, no vaccination and the fourth dose at different time points. The certainty of the evidence was assessed by Grading of Recommendations, Assessments, Development and Evaluation approach.

Results

This review included 50 studies. The third-dose VE, compared with the primary series, against SARS-CoV-2 infection was 48.86% (95% CI 44.90% to 52.82%, low certainty) at ≥14 days, and gradually decreased to 38.01% (95% CI 13.90% to 62.13%, very low certainty) at ≥90 days after the third-dose vaccination. The fourth-dose VE peaked at 14–30 days (56.70% (95% CI 50.36% to 63.04%), moderate certainty), then quickly declined at 61–90 days (22% (95% CI 6.40% to 37.60%), low certainty). Compared with no vaccination, the third-dose VE was 75.84% (95% CI 40.56% to 111.12%, low certainty) against BA.1 infection, and 70.41% (95% CI 49.94% to 90.88%, low certainty) against BA.2 infection at ≥7 days after the third-dose vaccination. The third-dose VE against hospitalisation remained stable over time and maintained 79.30% (95% CI 58.65% to 99.94%, moderate certainty) at 91–120 days. The fourth-dose VE up to 60 days was 67.54% (95% CI 59.76% to 75.33%, moderate certainty) for hospitalisation and 77.88% (95% CI 72.55% to 83.21%, moderate certainty) for death.

Conclusion

The boosters provided substantial protection against severe COVID-19 outcomes for at least 6 months, although the duration of protection remains uncertain, suggesting the need for a booster dose within 6 months of the third-dose or fourth-dose vaccination. However, the certainty of evidence in our VE estimates varied from very low to moderate, indicating significant heterogeneity among studies that should be considered when interpreting the findings for public health policies.

PROSPERO registration number

CRD42023376698.

Genital tract infections, the vaginal microbiome and gestational age at birth among pregnant women in South Africa: a cohort study protocol

Por: Gigi · R. M. S. · Mdingi · M. M. · Jung · H. · Claassen-Weitz · S. · Bütikofer · L. · Klausner · J. D. · Muzny · C. A. · Taylor · C. M. · van de Wijgert · J. H. H. M. · Peters · R. P. H. · Low · N.
Introduction

Preterm birth complications are the most common cause of death in children under 5 years. The presence of multiple microorganisms and genital tract inflammation could be the common mechanism driving early onset of labour. South Africa has high levels of preterm birth, genital tract infections and HIV infection among pregnant women. We plan to investigate associations between the presence of multiple lower genital tract microorganisms in pregnancy and gestational age at birth.

Methods and analysis

This cohort study enrols around 600 pregnant women at one public healthcare facility in East London, South Africa. Eligible women are ≥18 years and at Chlamydia trachomatis and Neisseria gonorrhoeae, with treatment if test results are positive. At these visits, additional vaginal specimens are taken for: PCR detection and quantification of Trichomonas vaginalis, Candida spp., Mycoplasma genitalium, M. hominis, Ureaplasma urealyticum and U. parvum; microscopy and Nugent scoring; and for 16S ribosomal RNA gene sequencing and quantification. Pregnancy outcomes are collected from a postnatal visit and birth registers. The primary outcome is gestational age at birth. Statistical analyses will explore associations between specific microorganisms and gestational age at birth. To explore the association with the quantity of microorganisms, we will construct an index of microorganism load and use mixed-effects regression models and classification and regression tree analysis to examine which combinations of microorganisms contribute to earlier gestational age at birth.

Ethics and dissemination

This protocol has approvals from the University of Cape Town Research Ethics Committee and the Canton of Bern Ethics Committee. Results from this study will be uploaded to preprint servers, submitted to open access peer-reviewed journals and presented at regional and international conferences.

Trial registration number

NCT06131749; Pre-results.

Adverse drug events associated with nortriptyline compared with paroxetine and alternative medications in an older adult population: a retrospective cohort study in Southern California

Por: George · M. M. · Deamer · R. L. · Do · D.
Objective

Investigate risk for falls, fractures and syncope in older adult patients treated with nortriptyline compared with paroxetine and alternative medications.

Design

Retrospective cohort study.

Setting

The electronic medical record and prescription drug database of a large integrated healthcare system in Southern California.

Participants

Ambulatory patients, age ≥65 years diagnosed with depression, anxiety disorder or peripheral neuropathy, dispensed one or more of ten study medications between 1 January 2008 and 31 December 2018.

Main outcome measures

HR for falls, fractures and syncope with exposure to study medications adjusted for patient demographic variables and comorbidities.

Results

Among 195 207 subjects, 19 305 falls, 15 088 fractures and 11 313 episodes of syncope were observed during the study period. Compared with the reference medication, nortriptyline, the adjusted HRs (aHRs) for falls were statistically significantly greater for: paroxetine (aHR 1.48, 95% CI 1.39 to 1.57), amitriptyline (1.20, 95% CI 1.08 to 1.33), venlafaxine (1.44, 95% CI 1.34 to 1.56), duloxetine (1.25, 95% CI 1.12 to 1.40), fluoxetine (1.51, 95% CI 1.44 to 1.59), sertraline (1.53, 95% CI 1.44 to 1.62), citalopram (1.61, 95% CI 1.52 to 1.71) and escitalopram (1.37, 95% CI 1.21 to 1.54), but not gabapentin (0.95, 95% CI 0.89 to 1.02). For fractures, compared with nortriptyline, aHRs were significantly greater for: paroxetine, venlafaxine, duloxetine, fluoxetine, sertraline, citalopram, escitalopram and gabapentin, with aHRs ranging from 1.30 for gabapentin to 1.82 for escitalopram; risk was statistically similar for amitriptyline. For syncope, the aHRs were significantly greater for: paroxetine, venlafaxine, fluoxetine, sertraline and citalopram, with aHRs ranging from 1.19 for fluoxetine and paroxetine up to 1.30 for citalopram and sertraline; risk was similar for amitriptyline, duloxetine, escitalopram and gabapentin.

Conclusions

Compared with therapeutic alternatives, nortriptyline was found to represent a lower risk for falls, fractures and syncope, versus comparator medications, except for a few instances that had equivalent risk. The risk for these adverse events from paroxetine was comparable to the alternative medications.

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