by Hemant Mahajan, Poppy Alice Carson Mallinson, Judith Lieber, Santhi Bhogadi, Santosh Kumar Banjara, Anoop Shah, Vipin Gupta, Gagandeep Kaur Walia, Bharati Kulkarni, Sanjay Kinra
Background and AimCardiovascular diseases (CVDs) represent a growing public-health challenge in India, where nearly one in four deaths is CVD-related. Accurate risk stratification underpins targeted prevention, yet laboratory-dependent tools are often impractical in resource-limited settings. The World Health Organization (WHO) and GLOBORISK initiatives both offer non-laboratory-based 10-year CVD risk algorithms alongside their laboratory-based counterparts. We aimed to compare laboratory- and non-laboratory-based WHO and GLOBORISK CVD risk scores, assess their concordance, and examine relationships with sub-clinical atherosclerosis in a rural Indian cohort.
Materials and MethodsWe conducted a cross-sectional analysis of 2,465 adults (1,184 men, 1,281 women) aged 40−74 years from the third wave (2010−12) of the Andhra Pradesh Children and Parents Study (APCAPS). Participants with prior CVD were excluded. Ten-year CVD risk was calculated using sex-specific WHO (South Asia) and India-calibrated GLOBORISK models, both laboratory-based (age, sex, smoking, systolic blood pressure, diabetes, total cholesterol) and non-laboratory-based (age, sex, smoking, systolic blood pressure, BMI) algorithms. Categorical agreement was quantified via percentage agreement and quadratic weighted kappa (κ); continuous agreement by Bland-Altman analysis. We also evaluated linear associations between each risk score (categorical and continuous) and three sub-clinical atherosclerosis markers: carotid intima-media thickness (CIMT), pulse-wave velocity (PWV), and augmentation index (AIx), through sex-stratified multi-level linear regression with random intercept at the household level, adjusting for multiple testing (p Results
Median WHO-CVD-risk was 6.0% (IQR 4% − 9%) in men and 3.0% (2% − 4%) in women for both lab and non-lab models; median GLOBORISK-CVD-risk was 12.0% (9% − 16%) for lab-model vs. 15.0% (10% − 16%) for non-lab-model in men and 5.0% (3% − 9%) for lab-model vs. 5.0% (3% − 9%) for non-lab-model in women. Categorical agreement was substantial to almost perfect: WHO κ = 0.82 (overall), GLOBORISK κ = 0.72. Bland-Altman analyses demonstrated mean differences Conclusion
Non-laboratory-based WHO and GLOBORISK CVD risk scores exhibit high overall agreement with laboratory-based models and correlate strongly with subclinical atherosclerosis in rural India. However, modest underestimation in high-risk subgroups (diabetics, hypercholesterolemia) warrants cautious interpretation. These findings support the feasibility of non-lab risk assessment in resource-constrained settings, while underscoring the need for prospective validation against hard cardiovascular outcomes prior to large-scale implementation.
To assess factors associated with the adoption of the WHO Package of Essential Non-Communicable Diseases (PEN) Protocol 1 at primary healthcare (PHC) facilities in Nepal after healthcare workers received training.
Cross-sectional study.
PHC facilities across various provinces in Nepal.
A total of 180 healthcare workers trained in PEN, recruited from a random selection of 105 basic healthcare facilities.
The adoption of PEN Protocol 1 components: blood pressure measurement, blood glucose screening, 10-year cardiovascular disease (CVD) risk assessment using WHO/International Society of Hypertension risk charts and body mass index (BMI) assessment. Factors associated with protocol adoption were assessed using generalised estimating equations for ORs.
Among participants, 100% reported measuring blood pressure, while 56% measured blood sugar, 28% assessed CVD risk and 27% assessed BMI. The adoption of the CVD risk prediction chart was positively associated with the availability of amlodipine (adjusted OR (aOR) 3.00; 95% CI 1.09 to 8.27). The adoption of BMI assessment was positively associated with access to a stadiometer (aOR 3.23; 95% CI 1.26 to 8.30) and a glucometer (aOR 3.07; 95% CI 1.12 to 8.40), and negatively associated with lack of motivation/inertia of previous practice (aOR 0.60; 95% CI 0.42 to 0.87) and environmental factors such as lack of time and resources (aOR 0.57; 95% CI 0.37 to 0.89). Blood glucose level measurements were positively associated with being at a PHC centre (aOR 7.34; 95% CI 2.79 to 19.3) and the availability of metformin (OR 2.40; 95% CI 1.08 to 5.29).
Adoption of PEN Protocol 1 varied by component and was influenced by resource availability, provider motivation and system barriers. Addressing these factors is key to optimising implementation in low-resource settings.