Lifestyle and Health Research Center, Health Sciences Research Center, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
Department of Food and Nutrition, Faculty of Human Sciences and Design, King Abdulaziz University, Jeddah, Saudi Arabia.
Front Endocrinol (Lausanne). 2022 Aug 8;13:954755. doi: 10.3389/fendo.2022.954755. eCollection 2022.
To compare three body mass index (BMI) classifications that are used to assess the prevalence of overweight and obesity among Saudi children aged 6-13 years: the International Obesity Task Force (IOTF) age and gender cutoffs, the World Health Organization (WHO) growth references for school-aged children, and the Saudi (KSA) national growth references.
The sample comprised 2,169 children (52.5% girls) derived from two cross-sectional studies conducted in Riyadh and Jeddah during the 2017 and 2019 school years, respectively. Body weight and height were measured, and BMI was calculated.
The proportions (%) of the participants who were classified as underweight, overweight, and obese varied according to the reference used: IOTF reference (13.8, 18.4, and 12.7), WHO reference (17.2, 19.1, and 18.9), and KSA reference (7.0, 22.4, and 9.3), respectively, indicating higher values for overweight and obesity prevalence when the WHO references were used. Kappa agreement measures between the three references were found to be high, with the coefficients ranging from 0.936 (between the IOTF and KSA references) to 0.849 (between the IOTF and WHO references). In all three classifications, girls exhibited lower overweight or obesity prevalence than boys. Family income, but not paternal or maternal education, was significantly ( = 0.015) associated with overweight/obesity when using the IOTF standards. In addition, having a small family in the house was significantly ( < 0.05) associated with obesity, irrespective of the classification system.
Inconsistency was observed when estimating the prevalence of underweight, overweight, and obesity among Saudi children. However, when defining the overall prevalence of overweight plus obesity among Saudi children, the IOTF classification system performed in a similar way to the KSA references (31.1% versus 31.7%) compared to the WHO references (38.0%).
比较三种用于评估沙特 6-13 岁儿童超重和肥胖患病率的体质指数 (BMI) 分类方法：国际肥胖工作组 (IOTF) 的年龄和性别切点、世界卫生组织 (WHO) 学龄儿童生长标准以及沙特 (KSA) 国家生长标准。
样本包括来自 2017 年和 2019 年在利雅得和吉达进行的两项横断面研究的 2169 名儿童（52.5%为女孩）。测量体重和身高，并计算 BMI。
根据使用的参考标准，参与者中被归类为消瘦、超重和肥胖的比例（%）有所不同：IOTF 参考标准（13.8、18.4 和 12.7）、WHO 参考标准（17.2、19.1 和 18.9）和 KSA 参考标准（7.0、22.4 和 9.3），表明使用 WHO 参考标准时超重和肥胖的患病率较高。三种参考标准之间的 Kappa 一致性测量值较高，系数范围从 IOTF 和 KSA 参考标准之间的 0.936 到 IOTF 和 WHO 参考标准之间的 0.849。在所有三种分类中，女孩的超重或肥胖患病率均低于男孩。使用 IOTF 标准时，家庭收入（而非父亲或母亲的教育程度）与超重/肥胖显著相关（=0.015）。此外，家庭人口较少与肥胖显著相关（<0.05），与分类系统无关。
在估计沙特儿童消瘦、超重和肥胖的患病率时存在不一致性。然而，当定义沙特儿童超重加肥胖的总体患病率时，IOTF 分类系统与 KSA 参考标准（31.1%比 31.7%）的表现方式相似，而与 WHO 参考标准（38.0%）相比则有所不同。
