Institute of Nutrition, Mahidol University at Salaya, Nakhon Pathom 73170, Thailand.
Institute of Nutrition, Mahidol University at Salaya, Nakhon Pathom 73170, Thailand.
Obes Res Clin Pract. 2010 Oct-Dec;4(4):e247-342. doi: 10.1016/j.orcp.2010.08.001.
Evidence shows that waist circumference (WC) is one reliable index to predict abdominal obesity in children. This study aims to examine the relationship of WC to other anthropometric indexes and to determine the ability of WC as obesity screening tool.
811, 5-6 years old children in Saraburi province, central region of Thailand.
Anthropometric measurements were performed in children; 406 boys and 405 girls. WC measurement was performed at the umbilicus level. Subcutaneous skinfold was measured on subscapular, suprailiac and abdominal regions. Total body fat was measured with bioelectrical impedance analyzer. Receiver operating characteristic (ROC) analysis was employed to determine WC cut-offs for predicting obesity in children.
WC highly correlated with weight-for-height Z-score (WHZ) (r = 0.92-0.94, p = 0.01), body mass index (BMI) (r = 0.95-0.96, p = 0.01), trunk skinfold (r = 0.92-0.93, p = 0.01) and total body fat (r = 0.94-0.95, p = 0.01) for both genders. Based on Thai national reference, the optimal WC cut-offs for predicting obesity were 59.6 cm for boys and 60.5 cm for girls. When IOTF-BMI was employed as reference, WC thresholds were 64.4 cm for boys and 63.1 cm for girls. The latter WC cut-offs provided the slightly underestimated obesity prevalence compared with national reference.
The strongly positive correlation between WC and weight-height based index and between WC and body fat in Thai preschool children suggests that WC should be the additional index for obesity screening in young children. Further study needs to explore the association between the increased WC and other adverse health outcomes.
有证据表明，腰围（WC）是预测儿童腹部肥胖的一个可靠指标。本研究旨在探讨 WC 与其他人体测量指标的关系，并确定 WC 作为肥胖筛查工具的能力。
泰国中部沙拉武里省 811 名 5-6 岁儿童。
对儿童进行人体测量；其中男童 406 名，女童 405 名。在脐水平测量 WC。在肩胛下、髂嵴上和腹部测量皮下皮褶厚度。采用生物电阻抗分析仪测量体脂总量。采用受试者工作特征（ROC）分析确定 WC 截断值，以预测儿童肥胖。
WC 与身高体重 Z 评分（WHZ）高度相关（r = 0.92-0.94，p = 0.01）、体重指数（BMI）（r = 0.95-0.96，p = 0.01）、躯干皮褶（r = 0.92-0.93，p = 0.01）和体脂总量（r = 0.94-0.95，p = 0.01），无论性别如何。基于泰国国家参考值，预测肥胖的最佳 WC 截断值为男孩 59.6cm，女孩 60.5cm。当采用 IOTF-BMI 作为参考时，WC 阈值为男孩 64.4cm，女孩 63.1cm。后者的 WC 截断值与国家参考值相比，略低估了肥胖的患病率。
泰国学龄前儿童 WC 与基于体重身高的指数之间以及与体脂之间的强烈正相关关系表明，WC 应该是儿童肥胖筛查的附加指标。需要进一步研究探讨 WC 增加与其他不良健康结果之间的关系。
