Age at Natural Menopause and Related Factors in Isfahan, Iran.
OBJECTIVE
This study was aimed to evaluate the age at natural menopause and related factors among women in a population based study in 2015 in Isfahan, Islamic Republic of Iran.


METHODS
In this cross-sectional study 960 menopausal women were selected by cluster sampling. Demographic, socioeconomic, lifestyle behavior and reproductive history aspects were collected using a structured questionnaire. Woman and her husband's educational level and occupation with family income were the variables to construct socioeconomic status using principal component analysis.


RESULTS
Mean and median of natural menopause age were 48.66 and 48 years, respectively. Women body mass index (BMI) more than 30 kg/m(2) had significantly higher menopausal age than women with lower BMI (P value = 0.022). The mean of menopausal age was not statistically significant in regard to marital status, physical activity, smoking status, menarche age, age at first pregnancy and history of abortion. Menopause age with pregnancy numbers and age at last pregnancy had a significant positive association. Women with better socioeconomic status had significantly higher natural menopause age. Multiple linear regression shows significant relationship between lower age at menopause with higher age at marriage, higher number of pregnancy and lower socioeconomic status.


CONCLUSIONS
Age at menopause in our studied sample is similar to previous estimates reported for other Iranian populations. Age at marriage, higher number of pregnancy and lower socioeconomic status were the significant factors in relations to age at menopause.
Department of Community Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Parastoo
P
Golshiri
Department of Epidemiology, School of Health and Nutrition, Shiraz University of Medical Sciences, Shiraz, Iran.
Mojtaba
M
Akbari
Department of Community Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Mohammad Reza
MR
Abdollahzadeh
Age factors; Iran; Menopause; Socioeconomic factors