Effects of disability on adverse health outcomes and anthropometric deficits among under-five children in South Asian countries: evidence from multiple indicator cluster surveys.

Background: Children with disabilities face an increased risk of adverse health outcomes and poor anthropometric deficits, although the focus on them is limited in the South Asian context thus far and need newer and more evidence. This study investigates the effects of disability on adverse health outcomes and anthropometric deficits among 2-4 years aged children in South Asian countries. Methods: We analyzed data from 93,180 children aged 2-4 years across Bangladesh, Nepal, Pakistan, and Afghanistan using Multiple Indicator Cluster Surveys (2017-2023). Disability status was the primary exposure, and outcomes included adverse health outcome (acute respiratory infection, diarrhea, fever), anthropometric deficit (stunting, wasting, underweight), and healthcare service sources during adverse health events (care received from skilled healthcare personnel, care received from non-professional personnel, and care received from health facility workers other than skilled healthcare personnel). Using multilevel and multinomial logistic regression models, we examined associations between exposure and outcome variables, adjusting for covariates. Findings: We found average disability prevalence in South Asia was 8.7% (8.3-9.0; n = 8072), varying from 3.4% (3.0-3.8; n = 446) in Bangladesh to 12.3% (11.4-13.3; n = 1259) in Afghanistan. Common health issues included fever (n = 24,982, 26.8%, 26.2-27.4) and diarrhea (n = 14,081, 15.1%, 14.7-15.6), while prevalent poor anthropometric deficits were stunting (n = 39,766, 42.7%, 42.0-43.3) and underweight (n = 22,390, 24.0%, 23.5-24.5). Children with disability had 1.30 (95% CI: 1.21-1.40) to 1.60 (95% CI: 1.47-1.75) times and 1.17 (95% CI: 1.05-1.29) to 1.39 (95% CI: 1.30-1.48) times higher likelihoods of adverse health outcomes and anthropometric deficits, respectively, with variations observed among countries and different disability types. Individuals with disability were 1.16 (95% CI: 1.00-1.35) to 1.26 (95% CI: 1.01-1.58) times more likely to receive healthcare services from skilled healthcare personnel compared to health facility workers other than skilled healthcare personnel. Interpretation: This study findings emphasizes the need for community-level awareness programs to improve anthropometric well-being and healthcare of the children with disability. Funding: This research did not receive any specific funds.