Menarcheal age of mothers and daughters: Tehran Lipid and Glucose Study
AbstractThere is some evidence for a decreasing age of menarche in many populations. This study examined the secular trend of age at menarche among Iranian women. Age at menarche based on recall information was recorded for 770 pairs of mother and daughters. Between 1930 and 1990 mean menarcheal age of this cohort of women decreased from 13.88 to 12.98 years [-0.15 years per decade] and mean height of the cohort increased from 152.33 to 158.43 cm [+0.99 cm per decade]. There was a significant correlation between menarcheal age of mothers and their daughters [r = 0.27]. Year of birth, mother's menarcheal age and daughter's height were significant predictors of daughter's menarcheal age
Tehrani, F.R., Mirmiran, P., Zahedi Asl, S., Nakhoda, K. & Azizi, F. (2010). Menarcheal age of mothers and daughters: Tehran Lipid and Glucose Study. http://www.who.int/iris/handle/10665/117882
EMHJ - Eastern Mediterranean Health Journal, 16 (4), 391-395, 2010
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Tiwari, H.; Oza, U.N.; Tiwari, R. (2006)A questionnaire survey of knowledge, attitudes and beliefs towards menstruation was made in 22 schools in Anand district, Gujarat state. Of 900 schoolgirls aged 11-17 years, only 38.5% felt comfortable about menarche and only 31.0% believed that menstruation was a normal physiological process. Many [37.2%] had not been informed about menarche before its onset and 48.2% felt they were not mentally prepared. The major sources of information were the mother [60.7%] or an elder sister [15.8%]; teachers and others relatives played a small role. In ...