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目的探讨腰围三酰甘油指数(WT指数)识别青少年心血管危险因素聚集准确性,为有效控制青少年心血管疾病的发生提供参考依据。方法通过分层整群随机抽样,共抽取河北省秦皇岛地区13~17岁汉族青少年3 136名。计算WT指数。结果青少年中心血管危险因素聚集检出率为1.7%,WT指数与心血管危险因素个数呈正相关(男生:r=0.248,P=0.000;女生:r=0.226,P=0.000)。WT指数识别青少年心血管危险因素聚集的ROC曲线下面积男生为0.714(95%CI=0.662~0.821,P=0.000),女生为0.889(95%CI=0.821~0.957,P=0.000)。男生在WT指数为65.6时诊断指数最大,灵敏性和特异性分别为76.9%和63.5%;女生在WT指数为66.0时诊断指数最大,灵敏性和特异性分别为100.0%和63.8%。结论 WT指数与青少年心血管危险因素聚集密切相关,可能作为识别青少年心血管危险因素的简单工具。
Objective To investigate the accuracy of waist circumference triglyceride (WT index) in identifying cardiovascular risk factors in adolescents and provide a reference for the effective control of cardiovascular disease in adolescents. Methods By stratified cluster random sampling, a total of 3 136 Han Chinese adolescents aged 13 to 17 in Qinhuangdao of Hebei Province were collected. Calculate the WT index. Results The detection rate of cardiovascular risk factors in adolescents was 1.7%. The WT index was positively correlated with the number of cardiovascular risk factors (boys: r = 0.248, P = 0.000; girls: r = 0.226, P = 0.000). The area under the ROC curve for the clustering of cardiovascular risk factors among adolescents with WT index was 0.714 (95% CI = 0.662-0.821, P = 0.000) and 0.889 for girls (95% CI 0.821-0.957, P = 0.000). The boys had the highest diagnostic index at the WT index of 65.6, with a sensitivity and specificity of 76.9% and 63.5% respectively; girls had the highest diagnostic index at a WT index of 66.0 with sensitivity and specificity of 100.0% and 63.8%, respectively. Conclusion The WT index is closely related to the aggregation of cardiovascular risk factors in adolescents and may serve as a simple tool to identify cardiovascular risk factors in adolescents.