| چکیده انگلیسی مقاله |
BACKGROUND: This study aimed to compare the timing of puberty between various geographic locations and different ethnicities. METHODS: This national survey was conducted in 20 provinces in Iran. Healthy Iranian girls were selected from public schools using cluster random sampling. A total number of 30 clusters including 7493 girls, aged 6.0–20 years, were selected. In order to compare different areas, the national classification of the provinces based on climate, ethnicity, geographic locations, and socioeconomic variables were used. Accordingly, there are 11 regions in Iran. Analysis of variance was used to compare the mean ages of menarche, pubarche, and thelarche in different regions. RESULTS: Tehranian girls, with 11.99 ± 1.35 years (mean ± SD), had the lowest age of menarche which was statistically significantly. The second region with lowest age at menarche was Fars (12.40 ± 1.27 years). The mean age at breast bud stage (B2) was significantly lower in Ghazvin-Zanjan region (8.97 ± 1.45 years). In Fars region, the mean age at B2 stage of breast development (11.01 ± 1.88 years) was higher than other regions except for Mazendran-Guilan and Tehran-related cities. The mean age at public hair development at Tanner stage 2 (PH2) in Kordestan-Lorestan-Ilam region (10.70 ± 1.23 years) was significantly higher than other regions. CONCLUSIONS: We found significant differences in the age of pubertal stages of girls living in various regions with different ethnicity and geographic characteristics. Considering the impact of pubertal age on general health, more studies should be done about the lifestyle and environmental factors affecting the onset of puberty. KEYWORDS: Puberty, Girls, Living area, Iran. |
| نویسندگان مقاله |
محمد اسماعیل مطلق | mohammad esmaeil motlagh
bureau of family health, ministry of health and medical education, tehran, iran. department of pediatrics, ahvaz jundishapur university of medical sciences, ahvaz, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی جندی شاپور اهواز (Ahvaz jundishapur university of medical sciences)
علی ربانی | ali rabani
growth and development research center, tehran university of medical sciences, tehran, iran. department of pediatrics, tehran university of medical sciences, tehran, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)
رویا کلیشادی | roya kelishadi
child health promotion research center, isfahan university of medical sciences, isfahan, iran. department of pediatrics, isfahan university of medical sciences, isfahan, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)
پریسا میرمقتدایی | parisa mirmoghtadaee
child health promotion research center, isfahan university of medical sciences, isfahan, iran. department of clinical pharmay, school of pharmacy, isfahan university of medical sciences, isfahan, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)
صفیه شهریاری | safiyeh shahryari
youth and school health office, ministry of health and medical education, tehran, iran.
سازمان اصلی تایید شده: وزارت بهداشت درمان و آموزش پزشکی (Ministry of health and medical education)
گلایول اردلان | gelayol ardalan
youth and school health office, ministry of health and medical education, tehran, iran.
سازمان اصلی تایید شده: وزارت بهداشت درمان و آموزش پزشکی (Ministry of health and medical education)
حسن ضیالدینی | hassan ziaodini
office of health and fitness, ministry of education, tehran, iran.
نیما پروانه | nima parvaneh
growth and development research center, tehran university of medical sciences, tehran, iran. department of pediatrics, tehran university of medical sciences, tehran, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)
شهناز خدایی | shahnaz khodaei
growth and development research center, tehran university of medical sciences, tehran, iran. department of pediatrics, tehran university of medical sciences, tehran, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)
پریناز پورصفا | parinaz poursafa
science and research branch, islamic azad university, tehran, iran.
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)
آریا ستوده | aria sotoudeh
growth and development research center, tehran university of medical sciences, tehran, iran. department of pediatrics, tehran university of medical sciences, tehran, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)
|