Iranian Journal of

---

Background: Obesity is the most common cause of insulin resistance and metabolic syndrome (MS). These are the most important risk factors for CHD. The present study aims to evaluate the prevalence of obesity and metabolic syndrome, the two most important risk factors for CHD, in adolescent girls in Rafsanjan

Methods:  In this  cross sectional study 1221 respondents were randomly selected using a multiphase sampling method.  The individual questionnaire   was completed after receiving a written consent form.  The   weight, height, waist circumference (WC) and blood pressure were measured using standard equipments. Five ml blood sample were taken for measuring TG, HDL-C and FBS of the obese volunteer after detecting obese subjects (n=76). We determined MS    according to the latest ATP3 criteria.

Results :  Mean age of respondents was  14.3 ±  1.7 years ,and 11.2 %  (95 % CI = 9.4% -12.9 % )   and 2.4 % ( 95 % CI = 1.5 % - 3.3 % )   of subjects  were overweight and obese respectively .  Based on our findings about 1.2% (95% CI= 0.6%-1.8%) of respondents counted as abdominal obesity. According to ATPIII criteria 3.9 %( CI95 % = 2.8 % -5 %) of respondents encounter with MS.

Conclusion: This study showed high prevalence obesity and metabolic syndrome among adolescent girls of Rafsanjan. Therefore researchers suggest screening test also for children aged 6-11 years .The results will help with planning to control the problem in the future.

---

Background: Vitamin D deficiency is an unrecognized epidemic and a common health problem worldwide. The objective of our study was to determine the prevalence of vitamin D deficiency and its relationship with overall and abdominal obesity in adolescent girls. Methods: This cross-sectional, descriptive study was conducted on girls aged 14-17 years whom were selected by multistage random sampling from four districts of Boukan. Questionnaires about general characteristics, dietary intake and physical activity were completed by interviewing with the subjects. Anthropometric measurements were performed. Fasting blood samples were collected for determining of serum of 25 (OH) D levels. Data was analyzed by using SPSS software and descriptive statistics tests and partial correlation test. Results: The Mean of serum 25(OH) D was 7.26 (SD 2.81) ng/ml and 100% of subjects had vitamin D insufficiency. According to CDC (Centers for Disease Control and Prevention) criteria the prevalence of overweight, obesity and abdominal obesity were 18.5%, 1.4% and 26.4% respectively. There were significant reverse correlation between serum 25(OH) D and WC (r= -0.112, p=0.047). Conclusion: The Results of this study indicate that vitamin D deficiency is a major health problem among studied adolescents. Given the reverse association between vitamin D status and abdominal obesity appropriate approaches are needed to improve vitamin D status and lowering the prevalence of obesity among adolescents. Such conditions may prevent prevalence of chronic disease in adolescents' lives over the coming years.