Abstract:Objective: To investigate the interaction of physical activity and body mass index with age at menarche in Babun Najah Junior High School.Methods: This was a cross sectional study. The sampling technique in this study is non-probability sampling by a total sampling.Results: The results of the study were processed using the Chi-Square statistical test on 142 samples, obtained p-value = 0.748 (p>0.05) for the relationship between physical activity and age at menarche, p-value = 0.048 (p<0.05) for relations… Show more
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