ArticleBMC women's health2025
Age at menarche and chronological age as explanatory factors of BMI: a cross-sectional study among Peruvian adolescents.
Article in BMC women's health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
Corrections and comments
- Erratum issued
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAge at menarche has been associated with various indicators of adolescent health, including body mass index (BMI). However, its specific contribution to BMI across different geographical contexts remains largely unexplored.
objectiveTo analyze whether chronological age and age at menarche act as explanatory factors of BMI in a sample of Peruvian adolescents.
methodsThis was an explanatory study. A non-probabilistic sample of 423 adolescents from Lambayeque, Peru, was included. A structured data collection sheet was used to assess age at menarche, as well as weight and height.
resultsThe multiple regression model identified age at menarche and chronological age as significant predictors of BMI. Model 2 demonstrated a better fit (BIC = 1658 vs. BIC = 1669 in Model 1) and explained 31% of the variability in BMI (adjusted R² = 0.310, F = 96.018, p < 0.001). A negative effect of age at menarche on BMI was observed (β = -0.161, p < 0.001), indicating that earlier menarche is associated with higher BMI. Similarly, chronological age had a significant positive effect (β = 0.516, p < 0.001) and was the variable with the greatest impact on BMI.
conclusionChronological age and age at menarche are important explanatory factors of BMI in adolescents. Earlier menarche is associated with higher BMI, underscoring the importance of considering pubertal development when evaluating nutritional status during this stage of life.
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