Unveiling disparities: a non-linear decomposition analysis of the gap in menstrual hygiene material use between adolescent women in Aspirational and the remaining districts of India

This study aimed to investigate the factors contributing to the gap in the use of hygienic materials during menstruation to collect blood among adolescent women between Aspirational and the remaining districts of India. The study sample consisted of 114805 adolescent women (20835 women from 112 Aspirational districts and 93970 women from 595 remaining districts) from the National Family Health Survey-5. Fairlie decomposition was used to identify and measure the factors contributing to the gap in the use of hygienic materials between Aspirational and the remaining districts of India. This study determined that the use of hygienic materials during menstruation varied significantly between Aspirational and the remaining districts. While only 37% of adolescent women used hygienic materials in Aspirational districts, almost 52% did so in the remaining districts. Seventy-five per cent of Aspirational districts (84 of 112 districts) reported less than 50% use of hygienic materials, which is lower than the national average and the average of the remaining districts. It was revealed that nearly 90% of the total explained gap between the two groups was accounted for by household wealth, place of residence, exposure to mass media, and education level. Wealth was the main contributor to the gap, explaining about 46% of the difference in hygienic materials use between Aspirational and the remaining districts, followed by the place of residence (18%), exposure to mass media (15%), and education level (11%). Findings suggest that targeted interventions to improve access to hygienic materials among adolescent women in Aspirational districts, particularly those in the northern states of Uttar Pradesh, Bihar, and Chhattisgarh, are necessary. Policy efforts should focus on women from poor households, improving access to education, and expanding mass media exposure in Aspirational districts to reduce the gap in menstrual hygiene practices among adolescent women in India.