ArticlePloS one2026
Modeling diarrhea in children under five in Somaliland: A machine learning analysis using SLDHS 2020 data.
Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundDiarrhea remains a leading cause of morbidity and mortality among children under five years of age, particularly in low- and middle-income countries. This study investigated the prevalence and determinants of diarrhea in Somaliland using nationally representative data from the 2020 Somaliland Health and Demographic Survey (SLDHS) 2020.
methodsWe employed a cross-sectional study design and analyzed data from 1,112 women (aged 15-49) and their children under the age of five from six geographic regions in Somaliland. Variables were selected based on data availability in SLDHS 2020, including socioeconomic, demographic, and environmental factors. We employed descriptive statistics and binary logistic regression to identify significant associations of the variables with childhood diarrhea. Additionally, supervised machine-learning models (Logistic Regression, Probit Regression, Random Forest, Decision Tree, and SVM) were used to identify key determinants of diarrhea.
resultsThe overall prevalence of diarrhea was 7.2%, with significant regional variation (Togdheer: 12.5%; Awdal: 4.24%). Nomadic households had a significantly higher incidence (8.62%) than rural (2.41%) and urban (5.16%) households. Logistic regression analysis highlighted region, household wealth index, and sanitation access as significant predictors. Interestingly, maternal educational level was not significantly associated with the prevalence of diarrhea. The Decision Tree model achieved the highest accuracy (92.3%) and sensitivity (33.3%), while Logistic Regression had specificity >97%.
conclusionThis study underscores the importance of region-specific public health strategies focused on improving access to water and sanitation, especially in nomadic and low-income populations. Despite the high overall accuracy, the machine-learning models indicated that the predictive accuracy for positive diarrhea cases could be further refined. Efforts to alleviate diarrhea among young children in Somaliland should prioritize the enhancement of infrastructure and sanitation resources in underserved communities.
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