The 89th Annual Meeting of the American Association of Physical Anthropologists (2020)

Factors associated with age at natural menopause among Nagas in Nagaland, India


1Anthropology, University of Massachusetts, Amherst, 2Anthropology, University of Delhi, Delhi India

April 16, 2020 , Platinum Ballroom Add to calendar

The age at which natural menopause occurs can be determined by the final menstrual period and is influenced by cultural and as well environmental factors. Mean and median ages at menopause vary by methodological technique. Age at menopause is associated with health outcomes, such as breast cancer and osteoporosis, as well as longevity. The present study aims to determine age at menopause among Nagas residing in Nagaland and factors associated with variation in age at menopause. Cross-sectional data were obtained (n=352) through interviews, and age at natural menopause was queried by recall method. Mean age of the population was 47.8±8.6 years, ranging from 35 to 65 years, and mean recalled age at menopause among naturally postmenopausal women was 48 years, ranging from 41 to 53 years. Probit analysis, applied to determine age at natural menopause among the entire sample, resulted in a median of 50.48 years (95% Fieller Bounds: 49.88 – 51.13 years). Among Naga women, 68% had obtained a high school degree or higher and almost all (98%) were married. Based on the Asian cut offs for Body Mass Index (BMI), 54.3% had normal weight, 16.2% were underweight, 12.2% were overweight, and 16.2% were obese. Factors influencing age at menopause were assessed using Cox regression models, indicating inverse, non-significant associations with education and socioeconomic status, and positive, non-significant associations with BMI, number of conceptions, age at menarche, and menstrual regularity.