Geographical altitude and stunting among children aged under 5 years in India
Introduction Previous studies have found positive associations between higher geographical altitude and increased risk of stunting in children under 5 years old, but little evidence exists on this relationship in the Indian context specifically. Chronic exposure to high altitudes can impair food security, healthcare access, oxygen delivery and nutrient absorption, potentially increasing malnutrition. Objective To investigate the association between geographical altitude and stunting among children aged under 5 years in India. Methods Using data from the 2015–2016 National Family Health Survey, logistic regression was conducted to estimate the relationship between altitude and stunting, adjusting for child, maternal and household characteristics. The analysis included over 167 555 children under 5 years old. Results Children at higher altitudes had a significantly greater risk of stunting. Those at >2000+ metres had 40% higher adjusted odds of stunting than children below 1000 metres. T