Zahra Akhlaghi , Gholamreza Sharifzadeh , Mohammadreza Miri
Introduction: menarche is a remarkable phenomenon during the
stages of female puberty. Predicting the correct time of puberty in girls makes
it possible to provide them with the necessary knowledge in this field.
Method: This cross-sectional study was performed on 400
middle school girls 11 to 14 years of age in Birjand using interviews and
anthropometric measurement methods. Samples were selected by two-stage random
sampling. The data collection tool was a questionnaire including demographic
characteristics, the age of menarche, and anthropometrics. The content validity
of the questionnaire was confirmed by several faculty members and its
reliability was confirmed using retesting and calculating Cronbach's alpha
coefficient. Data were analyzed using SPSS software and independent t-test,
analysis of variance and Pearson correlation coefficient were used, and p≤0.05
was considered as a significant level.
Results:
Based on the findings of this study, the mean age of menarche in Birjand was
12.13±1.19 years. The mean body mass index was 20.3±3.8 kg/m2. A
significant relationship was found between menarche age and body mass index
(p≤0.001). In other words, girls with normal body mass experience menarche age
later than girls who are overweight and obese.
Conclusion: The average age of menarche in Birjand is lower than other regions of the country which is the result of different climatic conditions, improving health and social conditions, and improving nutritional status.
Key Words: menarche, puberty
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