Gender Modify the Effect of Birth Weight on Later Obesity Risk among Primary School Pupils: A Community-Based Case-Control Study

Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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JR_INJPM-9-7_005

تاریخ نمایه سازی: 17 خرداد 1400

Abstract:

  Background The researchers do not prove the effect of birth weight on childhood obesity, so far. This study aimed at providing evidence on the effect of birth weight on obesity and overweight among primary school pupils. Materials and Methods: This case-control study was conducted on ۵۰۸ primary school pupils. Multistage sampling technique was applied to increase the accuracy of risk calculation. Pupils were divided into the two groups of case (۱۷۰ pupils with a Z-score  ≥ ۱ as overweight and obese)  and control (۳۳۸ pupils with a Z-score between -۲ to ۱ as not being obese or overweight) based on WHO reference data, For each case, two controls were matched and selected based on age, gender, and type of school. Demographic, physical activity as well as ۲۴-hour dietary program and amount of energy expenditure data were collected. All data analyses were performed using SPSS. Odds ratio with ۹۵% confidence interval was estimated. Results: The risk of obesity and overweight among girls who had a birth weight > ۳,۵۰۰g, was ۲.۵۱ times higher than that in girls with a birth weight ≤ ۳,۵۰۰g (OR=۲.۵۱, ۹۵% Cl: ۱.۲-۵.۲۵). However, not only this risk among boys was not higher than unity, but also it was less than one showing a reveres not-significant association (OR=۰.۷۱۵, ۹۵% CI: ۰. ۳۶۹-۱.۳۹). Conclusion Birth weight was an independent risk factor for obesity and overweight during childhood only among girls. Gender had a moderating effect on the relation between birth weight and obesity during childhood.  

Authors

Dariush Bastam

MSc of Epidemiology, Medical school, Yasuj University of Medical Sciences,Yasuj, Iran.

Reza Vazirinejad

Prof. Dept. of Social Medicine, Social Determinants of Health Research center, Medical school, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.

Golnaz Sharifnia

Department of Epidemiology, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.

Mohsen Rezaeian

Prof. Dept. of Epidemiology, Occupational Environmental Research Center, Medical school, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.

Hasan Ahmadinia

PhD Student of Biostatistics, Hamadan University of Medical Science, Hamadan, Iran.