Interstate migration and its association with the prevalence of stunting in under-five children of the migrant families in Delhi-NCR, India: a cross-sectional study

Background: Interstate migration in India is increasing every year. Children of the migrant families often face poor living conditions and insufficient nutrition, as a result of various socio-economic determinants. This study aimed to understand the association between rural-to-urban migration and under-five stunting, and the various determinants involved. This study allows researchers to make pre and post pandemic comparison of stunting among migrant children in Delhi, since it was carried-out post the second wave of the COVID-19 pandemic. Methods: A community-based cross-sectional survey was carried-out in the bhatti mines area of south Delhi, using a systemic sampling method. 100 households each of migrants and non-migrants were approached, and height of the under-five children was measured. Stunting was estimated using WHO child growth standards. Information on demography and socio-economic determinants was collected from the mothers using a questionnaire. Results: Stunting was recorded in 62% of the migrant under-five children and 27% in the non-migrant children, with a significant difference between the two groups (p value <0.001), indicating a significant association between migration and stunting. Source of drinking water (p<0.05) and recurring episodes of diarrhea (p<0.05) were also found to be strongly associated with under-five stunting. Conclusions: Under-five nutritional deficits lead to compromised immunity and delay in physical and mental growth and development. It is important to recognize and address the diverse needs of the under-five migrant population’s health in order to avoid stunting and other serious manifestations.