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Differences in health literacy related to gestational weight gain and childrens birth weight according to maternal nativity status in the Japan Environment and Childrens Study (JECS): a longitudinal cohort study

Por: Kigawa · M. · Tsuchida · A. · Matsumura · K. · Ito · M. · Tanaka · T. · Hamazaki · K. · Adachi · Y. · Inadera · H. · The Japan Environment and Childrens Study (JECS) Group · Kamijima · Yamazaki · Ohya · Kishi · Yaegashi · Hashimoto · Mori · Ito · Yamagata · Nakayama · Sobue · Shima
Objectives

We examined literacy related to healthy gestational weight gain (GWG) in immigrant and native Japanese mothers and determined whether it is associated with children’s birth weight.

Design

Longitudinal cohort study.

Setting

As the baseline survey in the Japan Environment and Children’s Study (JECS), mothers completed self-administered questionnaires distributed by hand during pregnancy. The self-administered questionnaires used in this study were distributed by mail 6 months after delivery. Children’s birth weight, actual GWG and any complications during delivery were recorded by obstetricians collaborating with JECS.

Participants

Of 97 452 mothers who consented to participate in the JECS during pregnancy between January 2011 and March 2014, 67 953 were included in this study after exclusions for multiple births, multiple instances of consent by the same pregnant woman, miscarriages/stillbirths or withdrawal from the study within 3 years after participating. In total, 324 immigrant mothers and 963 native Japanese mothers were selected by propensity score matching for analysis.

Primary and secondary outcome measures

Data were collected on maternal literacy related to healthy GWG at the baseline survey, and data on actual GWG and children’s birth weight were collected by obstetricians. The associations of knowledge about healthy GWG and mothers’ actual GWG with maternal nativity status were examined using a 2 or Student’s t-test.

Results

More native Japanese mothers than immigrant mothers knew the appropriate GWG and reason the for needing to know this. Actual GWG was significantly higher among the immigrant mothers, but was within the recommended range. The low birthweight (LBW) incidence was significantly higher among the native mothers.

Conclusions

Immigrant mothers to Japan had less knowledge about appropriate GWG, but their actual GWG was appropriate and they delivered fewer LBW infants than native Japanese mothers. These findings may indicate the presence of other protective factors for pregnancy or delivery among immigrant mothers.

Association between administration or recommendation of the human papillomavirus vaccine and primary care physicians knowledge about vaccination during proactive recommendation suspension: a nationwide cross-sectional study in Japan

Por: Sakanishi · Y. · Takeuchi · J. · Suganaga · R. · Nakayama · K. · Nishioka · Y. · Chiba · H. · Kishi · T. · Machino · A. · Mastumura · M. · Okada · T. · Suzuki · T.
Objective

The Japanese government suspended the proactive recommendation of the human papillomavirus vaccine (HPVv) in 2013, and the vaccination rate of HPVv declined to

Design

Cross-sectional study analysed data obtained through a web-based, self-administered questionnaire survey.

Setting

The questionnaire was distributed to Japan Primary Care Association (JPCA) members.

Participants

JPCA members who were physicians and on the official JPCA mailing list (n=5395) were included.

Primary and secondary outcome measures

The primary and secondary outcomes were the administration and recommendation of HPVv, respectively, by PCPs. The association between PCPs’ knowledge regarding vaccination and each outcome was determined based on their background and vaccination quiz scores and a logistic regression analysis to estimate the adjusted ORs (AORs).

Results

We received responses from 1084 PCPs and included 981 of them in the analysis. PCPs with a higher score on the vaccination quiz were significantly more likely to administer the HPVv for routine and voluntary vaccination (AOR 2.28, 95% CI 1.58 to 3.28; AOR 2.71, 95% CI 1.81 to 4.04, respectively) and recommend the HPVv for routine and voluntary vaccination than PCPs with a lower score (AOR 2.17, 95% CI 1.62 to 2.92; AOR 1.88, 95% CI 1.32 to 2.67, respectively).

Conclusions

These results suggest that providing accurate knowledge regarding vaccination to PCPs may improve their administration and recommendation of HPVv, even in the absence of active government recommendations.

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