Data_Sheet_1_Anaemia among women of reproductive age in selected sub-Saharan African countries: multivariate decomposition analyses of the demographic and health surveys data 2008–2018.docx

ObjectivesThe burden and highest regional prevalence of anaemia is reported in sub-Saharan Africa (SSA). The study evaluated changes in anaemia prevalence across the Demographic Health Surveys (DHS) periods in SSA and reported factors influencing observed changes in the trend.MethodThe study was implemented by a two-stage cross-sectional stratified sampling approach. The study involved women of reproductive age (15–49 years) in sub-Saharan Africa countries (Ghana, Sierra Leone, Mali, and Benin) using two different periods of their demographic health surveys (DHS) data. The study adopted both descriptive and inferential statistical methods. The chi-square test was used to determine the existence of a statistically significant relationship between the outcome and predictor variables and test the observed changes in anaemia. Multivariable logistic regression analyses were conducted on each survey year and the pooled dataset for eligible study countries. Multivariate decomposition analysis was performed to explain how compositional changes and behavioural effects of women characteristics affected the changes in anaemia prevalence. The study reported frequencies, percentages and odds ratios along with their 95% confidence intervals (CI).ResultsGhana and Sierra Leone experienced 17.07% [95% CI: 14.76–19.37, p  0.05] of anaemia decrease from period 1 to period 2, respectively, while Mali and Benin experienced 11% [95% CI: 9.14–12.90, p

研究旨在探讨撒哈拉以南非洲（SSA）贫血负担及其最高区域流行率。研究评估了SSA人口健康调查（DHS）期间贫血流行率的变化，并报告了影响观察到的趋势变化的相关因素。研究方法采用两阶段横断面分层抽样方法，涉及撒哈拉以南非洲国家（加纳、塞拉利昂、马里和贝宁）的生育年龄女性（15-49岁），并利用其人口健康调查（DHS）数据的两个不同时期。研究采用了描述性和推理性统计方法。卡方检验用于确定结果变量与预测变量之间是否存在统计学上的显著关系，并检验贫血观察到的变化。对每个调查年份和符合条件的研究国家的合并数据集进行了多变量逻辑回归分析。为了解释女性特征组成的变化和行为效应如何影响贫血流行率的变化，进行了多元分解分析。研究报告了频率、百分比以及优势比及其95%置信区间（CI）。结果方面，加纳和塞拉利昂分别经历了从时期1到时期2的17.07%[95% CI: 14.76-19.37, p < 0.05]的贫血减少，而马里和贝宁则经历了11%[95% CI: 9.14-12.90, p < 0.05]的减少。