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Journal of Medical Sciences
Year: 2006  |  Volume: 6  |  Issue: 5  |  Page No.: 772 - 778

Age at Menarche and its Predicting Factors in Cities of Ibadan and Ogbomoso of Southwestern Nigeria

Y. Raji, O.A. Osonuga, O.I Shittu, O.S. Akinsomisoye, V.A. Togun and Mistura O. Azeez    

Abstract: A study of 542 randomly selected female students of the University of Ibadan and Ladoke Akintola University, Ogbomoso, both located in the southwestern Nigeria was carried out to determine the current menarcheal age and predicting factors influencing its onset. Mean age at menarche was found to be 13.66±1.82 years. 49.3% attained menarche between the ages of 13 and 14 years, 75.7% between 12 and 15 years, 8.1% at 16 while 6.1% had their first menstruation at age 11 years. There was a significant linear relationship (p = 0.004) between the age at menarche and body weight. The body surface area and height showed an insignificant inverse relationship with age at menarche. Socio-economic status of the parents had no influence on the age at menarche. Simple and multiple regression models for predicting age at menarche were derived from body weight, height and body surface area.

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