Age at Menarche, Schooling, and Sexual Debut in Northern Malawi

Judith R Glynn, Ndoliwe Kayuni, Sian Floyd, Emmanuel Banda, Monica Francis-Chizororo, Clare Tanton, Anna Molesworth, Joanne Hemmings, Amelia C Crampin and Neil French

PLOS ONE, 2010, vol. 5, issue 12, 1-8

Abstract: Background: Age at sexual debut is a key behavioural indicator used in HIV behavioural surveillance. Early age at menarche may precipitate early sex through perceived readiness for sex, or through school drop-out, but this is rarely studied. We investigated trends and circumstances of sexual debut in relation to schooling and age at menarche. Methods and Findings: A cross-sectional sexual behaviour survey was conducted on all individuals age 15–59 within a demographic surveillance site in Karonga District, Malawi. Time trends were assessed using birth cohorts. Survival analysis was used to estimate the median age at menarche, sexual debut and first marriage. The 25th centile was used to define “early” sex, and analyses of risk factors for early sex were restricted to those who had reached that age, and were done using logistic regression. Of the 8232 women and 7338 men resident in the area, 88% and 78%, respectively, were seen, and, 94% and 92% of these were interviewed. The median reported age at first sex was 17.5 for women and 18.8 for men. For women, ages at menarche, sexual debut and first marriage did not differ by birth cohort. For men, age at sexual debut and first marriage decreased slightly in later birth cohorts. For both men and women increased schooling was associated with later sexual debut and a longer delay between sexual debut and first marriage, but the associations were stronger for women. Earlier age at menarche was strongly associated with earlier sexual debut and marriage and lower schooling levels. In women early sexual debut (

Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0015334

DOI: 10.1371/journal.pone.0015334

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