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J Physiol Anthropol. 2020 Mar 23;39(1):6. doi: 10.1186/s40101-020-00218-w.

Early age at menarche and its associated factors in school girls (age, 10 to 12 years) in Bangladesh: a cross-section survey in Rajshahi District, Bangladesh.

Author information

1
Department of Statistics, University of Rajshahi, Rajshahi, 6205, Bangladesh.
2
Australian Research Centre for Population Oral Health (ARCPOH), The University of Adelaide, Adelaide, South Australia, 5005, Australia.
3
Department of Anthropology, Mrinalini Datta Mahavidyapith, Vidyapith Road, Birati, Kolkata, 700 051, India.
4
Department of Statistics, University of Rajshahi, Rajshahi, 6205, Bangladesh. hossain95@yahoo.com.

Abstract

BACKGROUND:

Early onset of menarche is one of the most important factors for breast cancer and other associated health hazards. The aim of this study was to investigate the early age at menarche and its associated factors in school girls (age, 10-12 years) in Rajshahi District, Bangladesh.

METHODS:

Data was collected from Rajshahi District, Bangladesh, using multistage random sampling. Independent sample t test and binary logistic regression model were used in this study. A total number of 386 school girls aged 10-12 years were considered as a sample for this study.

RESULTS:

This study revealed that more than 48% girls already attained menarche within the age of 12 years, among them 25.6%, 41.0%, and 58.3% girls experienced menarche at the age of 10, 11, and 12 years, respectively. It was observed that the menarcheal girls were significantly taller (p < 0.01) and heavier (p < 0.01) than non-menarcheal girls. The menarcheal girls' mothers were heavier (p < 0.01), shorter (p < 0.01), had more BMI (p < 0.01), reached menarche (p < 0.05) earlier than non-menarcheal girls' mothers. Menarcheal girls had less number of siblings (p < 0.01) and lower order of birth (p < 0.05) than non-menarcheal girls. After controlling the effect of other factors, multiple logistic regression model demonstrated that obese girls were more likely to attain menarche than under- [AOR = 0.279, CI 95% 0.075-0.986; p < 0.05] and normal [AOR = 0.248, CI 95% 0.082-0.755; p < 0.05] weight girls. Urban school girls had more chance to get menarche than rural school girls at same age (AOR = 0.012, 95% CI 0.003-0.047; p < 0.01).

CONCLUSIONS:

Therefore, modern lifestyle changes may have the important factors for early age at menarche of the studied girls in Bangladesh.

KEYWORDS:

Age at menarche; Independent sample t test; Logistic regression model; Rajshahi District; School girls

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