Mottaghi Azadeh, Mirmiran Parvin, Pourvali Katayoon, Tahmasbpour Zhaleh, Azizi Fereidoun
Obesity Research Center, Research Institute for Endocrine Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Nutrition and Endocrine Research Center, Research Institute for Endocrine Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Iran J Public Health. 2017 Oct;46(10):1395-1403.
The aim of this study was to determine the incidence and prevalence of obesity in Tehranian children.
Data from children participated in Tehran Lipid and Glucose Study (TLGS) were evaluated. Cut off points for definition of obesity was the CDC's standard thresholds of the 95 percentile and 85 percentile for overweight. Prevalence, annual incidence of obesity, cumulative incidence over 10 year and the incidence density (cases per person-years) totally were calculated.
The annual incidence of obesity was 1.9 and 3.4% per year in the first 3 yr and decreased to 0.9 and 2.5% in the last 3 yr of follow-up in girls and boys, respectively. Incidence density rates were in line with cumulative incidence, with a rate of 20.7 per 1000 person-years between the ages of 5.6 and 15.5 yr. The prevalence of obesity was higher among children who had obese parents (=0.03). Among all ages, across the quartiles of parents' BMI, the prevalence of obesity increased with rising in paternal (=0.001) or maternal BMI (=0.004). Physical activity of mothers affected the prevalence of obesity in children at mean ages of 5.3 and 9.1 yr. Across quartiles of mother's physical activity, from heavy to light, the prevalence of obesity increased among children, from 4.4% to 5.9% in children, aged 5.3 (=0.02) and from 11.6% to 13.0% in children, aged 9.1 yr (=0.03).
Prevalence of obesity among children increased with age. Cumulative incidence of obesity in children who were overweight at baseline was much higher than other children.
本研究旨在确定德黑兰儿童肥胖症的发病率和患病率。
对参与德黑兰脂质与葡萄糖研究（TLGS）的儿童数据进行评估。肥胖定义的切点采用美国疾病控制与预防中心（CDC）超重的第95百分位数和第85百分位数的标准阈值。计算了患病率、肥胖的年发病率、10年累积发病率以及发病密度（每千人年的病例数）。
在随访的前3年中，女孩和男孩肥胖的年发病率分别为每年1.9%和3.4%，在随访的最后3年中分别降至0.9%和2.5%。发病密度率与累积发病率一致，在5.6至15.5岁之间为每1000人年20.7例。肥胖父母的孩子中肥胖患病率更高（P = 0.03）。在所有年龄段中，按照父母BMI的四分位数划分，肥胖患病率随父亲（P = 0.001）或母亲BMI（P = 0.004）的升高而增加。母亲的身体活动影响平均年龄为5.3岁和9.1岁儿童的肥胖患病率。按照母亲身体活动的四分位数划分，从高强度到低强度，儿童肥胖患病率增加，5.3岁儿童从4.4%增至5.9%（P = 0.02），9.1岁儿童从11.6%增至13.0%（P = 0.03）。
儿童肥胖患病率随年龄增加。基线时超重儿童的肥胖累积发病率远高于其他儿童。
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