Home > Alcohol per capita and prevalence of alcohol exposed pregnancies: systematic review and meta-analysis. [Abstract]

Burton, Edel and Kearney, Patricia M and Kelly, Sarah and Moffat, Malcolm and Morris, Joan and Popova, Svetlana and Rankin, Judith and O’Mahony, Mary T (2023) Alcohol per capita and prevalence of alcohol exposed pregnancies: systematic review and meta-analysis. [Abstract]. European Journal of Public Health, 33, (Supp 2), ckad160.1564. https://doi.org/10.1093/eurpub/ckad160.1564.

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Background: Alcohol is a teratogen that crosses the placenta. While studies have estimated the global burden of alcohol use in pregnancy, reliable and valid data on alcohol consumption during pregnancy in many countries is lacking. Alcohol consumption per capita (APC) data are available worldwide. This systematic review, by investigating the association between APC and alcohol consumption in pregnancy by country, aims to evaluate the accuracy of using APC data to predict the prevalence of prenatal alcohol exposure (PAE).

Methods: This study combines studies identified in a systematic review by Popova et al. 2017 and a systematic search of MEDLINE from 2015 through 6th October 2022, to identify additional papers. Papers identified in either search were on the prevalence of PAE or fetal alcohol syndrome (FAS). Two authors independently screened titles, abstracts, full-text articles and performed data extraction and quality assessment. APC data,per country, by year, was obtained from the World Health Organization (WHO) website. A meta-analysis, assuming a random effects model will be performed. Sensitivity analyses, including restricting by population, timing of exposure, time and method of ascertainment of alcohol consumption will be carried out.

Results: Of 24,935 PAE and 12,231 FAS prevalence articles identified, 400 PAE studies and 77 FAS studies met the inclusion criteria. Studies represent data from 1959-2020 from all 6 WHO regions, with APC between 0.012-14.78. Preliminary analysis suggests a statistically significant correlation between prevalence of alcohol consumption during pregnancy and APC.

Conclusions: Preliminary results from this study suggest that publicly available data on APC can be used to predict the population-based prevalence of alcohol use in pregnancy in different countries. Effective policies and interventions are required to reduce APC and thus, alcohol use in pregnancy and associated detrimental child health outcomes around the globe.

[See also Mary T O'Mahony, HSE Health and Wellbeing video Alcohol per capita and prevalence of prenatal alcohol exposure: systematic review and meta-analysis (8 minutes)]

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