Age of Menarche and Its Associated Factors Among Girls of Tamil Nadu

The study conducted among 530 college-going girls in Tamil Nadu found that the average age of menarche was 12.84 years, with a significant correlation to their sisters' age of menarche. Factors such as residential area, eating junk food, and physical activity were associated with the age of menarche. Additionally, eating habits were linked to acne during menstrual cycles. The study noted a generational decline in the age of menarche, with 2% experiencing precocious puberty and 49.3% having early menarche. Hirsutism and menstrual disorders were present in 10% of participants. The findings suggest a need for further research to understand the public health implications of these trends.