School of Nutrition, Federal University of Bahia, Salvador, Brazil.
Centre for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil.
PLoS One. 2022 May 23;17(5):e0268500. doi: 10.1371/journal.pone.0268500. eCollection 2022.
Conditional Cash Transfer Programs have been developed in Latin America in response to poverty and marked social inequalities on the continent. In Brazil, the Bolsa Familia Program (BFP) was implemented to alleviate poverty and improve living conditions, health, and education for socioeconomically vulnerable populations. However, the effect of this intervention on maternal and child health is not well understood.
We will evaluate the effect of BFP on maternal and child outcomes: 1. Birth weight; 2. Preterm birth; 3. Maternal mortality; and 4. Child growth. Dynamic retrospective cohort data from the 100 Million Brazilian Cohort (2001 to 2015) will be linked to three different databases: Live Birth Information System (2004 to 2015); Mortality Information System (2011 to 2015); and Food and Nutritional Surveillance System (2008 to 2017). The definition of exposure to the BFP varies according to the outcome studied. Those who never received the benefit until the outcome or until the end of the follow-up will be defined as not exposed. The effects of BFP on maternal and child outcomes will be estimated by a combination of propensity score-based methods and weighted logistic regressions. The analyses will be further stratified to reflect changes in the benefit entitlement before and after 2012.
Harnessing a large linked administrative cohort allows us to assess the effect of the BFP on maternal and child health, while considering a wide range of explanatory and confounding variables.
条件性现金转移支付计划在拉丁美洲应运而生，旨在应对该地区的贫困和显著的社会不平等问题。在巴西，实施了“家庭强化计划”（Bolsa Familia Program，BFP），以减轻贫困，改善社会经济弱势群体的生活条件、健康和教育水平。然而，该干预措施对母婴健康的影响尚未得到充分了解。
我们将评估 BFP 对母婴结局的影响：1. 出生体重；2. 早产；3. 孕产妇死亡率；以及 4. 儿童生长。将来自“1 亿巴西队列研究”（2001 年至 2015 年）的动态回顾性队列数据与三个不同的数据库进行关联：活产信息系统（2004 年至 2015 年）；死亡率信息系统（2011 年至 2015 年）；以及食品和营养监测系统（2008 年至 2017 年）。暴露于 BFP 的定义根据研究结局而有所不同。那些在结局发生或随访结束之前从未获得过福利的人将被定义为未暴露。将通过基于倾向评分的方法和加权逻辑回归相结合来估计 BFP 对母婴结局的影响。分析将进一步分层，以反映 2012 年前后受益资格的变化。
利用大型关联行政队列，我们可以评估 BFP 对母婴健康的影响，同时考虑广泛的解释和混杂变量。
