ارتباط بین شاخص¬هاي تن¬سنجي با سن بلوغ دانش¬آموزان دختر 14-11 ساله شاهرود

Abstract

Introduction: Though not impeding it, malnutrition during childhood delays the menarche age. This study aimed at investigating the relationship between anthropometric parameters with menarche age of adolescent (11-14- year old) girls. Methods: In this cross-sectional study, 418 middle school girls in Shahroud were randomly selected and studied. To demonstrate the participants’ nutritional status, BMI was used for age, weight and stature, and then it was compared with NCHS standard. Results: It was revealed that the mean of BMI (body mass Index) of menstruated girls was 19.8±3/1 and that of the non-menstruated participants was 17.6±3. The average menarche age turned to be 12.9±0.8. A significant relationship (P<0.0001) was found between age and incidence of menstruation. 47% of the participants experienced their menses in summer. The weight and height means of the menstruated participants were 48.7±8.5 kg and 156.9±6.7 cm respectively. A significant relationship (P=0.0001) was also found between weight, height, BMI and anthropometric parameters of the students, and their menstrual conditions. Statistical analysis also showed a significant relationship between menarche status and socioeconomic condition. Conclusion: The results of this study indicate a significant relationship between nutritional status and menarche age. Due to the importance of menarche age, its decline and creation of sexual desire, and noting the important effects of BMI and anthropometric parameters on menarche age, special attention should be paid to ideal weight, proper nutrition and sufficient physical activities in this high-risk group