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ORIGINAL ARTICLE
Year : 2017  |  Volume : 16  |  Issue : 1  |  Page : 18-24

Associations between birthweight, birth order, and age at menarche of schoolgirls in Niger Republic


1 Department of Anatomy, Faculty of Basic Health Sciences, Federal University, Lafia, Nigeria
2 Department of Anatomy, Faculty of Medical Sciences, Ahmadu Bello University, Zaria, Nigeria

Correspondence Address:
Monday Nwankwo
Department of Anatomy, Faculty of Medical Sciences, Federal University, Lafia
Nigeria
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jeca.jeca_27_16

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Background: Few data are available on the association between birthweight, birth order (BO), and age at menarche. Previous studies have indicated a significant association between birthweight, BO, and age at menarche. Aim: this cross-sectional study examines the association between birthweight, BO, and age at menarche of Nigerien schoolgirls. Materials and Methods: Sociodemographic and anthropometric data were collected with questionnaires from a total of 487 adolescent schoolgirls aged 12–27 years. Results: Schoolgirls with low birthweight reach menarche earlier than those with normal birthweight (13.59 years vs. 13.94 years, P= 0.004). BO showed statistically significant impact on age at menarche with the first-born girls reaching menarche earlier than the later-born girls (F = 5.17,P< 0.001). Age at menarche was positively related to all the measured anthropometrics at P< 0.01. Multiple regression analyses revealed that only BO is a significant predictor of age at menarche (P < 0.000). Conclusion: Our results suggest an association between birthweight, BO, and age at menarche.


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