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A recent analysis of India’s National Family Health Survey has revealed a significant improvement in neonatal health, with the prevalence of low birth weight—defined as under 2.5 kg—dropping from 26% in 1993 to 18% in 2021. Researchers from Duke and Harvard universities in the US, along with institutes in South Korea, found that this eight-percentage-point decline signals progress in maternal and child health across the country.
Despite the positive trend, the study highlights persistent disparities. Nearly half—47%—of India’s low birth weight cases are concentrated in just four states: Uttar Pradesh, Bihar, Maharashtra, and West Bengal. In the 2019–21 survey period, an estimated 4.2 million babies were born with low birth weight in a single year, and almost half of these cases originated from these four states.
The research also points to a convergence in low birth weight prevalence between states over time, indicating that the gap between high- and low-prevalence regions is narrowing. In 1993, Rajasthan had the highest prevalence at 48%, while in 2021, Punjab and Delhi topped the list at 22%. Mizoram and Nagaland consistently reported the lowest prevalence in both 1993 and 2021.
Low birth weight is often linked to maternal health issues, poor nutrition, and is associated with long-term risks for children, including cognitive development challenges and heightened vulnerability to chronic diseases later in life. The study found that babies with both low weight and smaller-than-average size at birth were more likely to be born to women with little or no formal education and from the poorest households.
The authors emphasized the importance of continued efforts to address maternal and neonatal health disparities. They called for improved data collection at healthcare facilities to support better decision-making and further reduce low birth weight rates across India.
Disclaimer:
This news article is based on data and findings from the National Family Health Survey as analyzed by researchers from Duke and Harvard universities, as well as institutes in South Korea, and published in the British Medical Journal (BMJ) Global Health. The numbers and trends are as reported in the cited sources and may be subject to updates with further research or revised data. The article is intended for informational purposes only and does not constitute medical advice.
