Faculty of Sport Studies dean, University of Brno, 625 00 Brno, Czech Republic.
Faculty of Kinesiology, Department of General and Applied Kinesiology, University of Zagreb, 10 000 Zagreb, Croatia.
Int J Environ Res Public Health. 2019 May 30;16(11):1920. doi: 10.3390/ijerph16111920.
The main purpose of the present study was to establish percentile curves for body-mass index (BMI), waist circumference (WC), waist-to-height ratio (WHtR) and WHtR(exp) in adolescents.
In this cross-sectional study, we recruited 1036 secondary-school students aged 15 to 18 years from eight randomly selected schools (55.3% girls). BMI, WC, WHtR and WHtR(exp) were calculated using standardized measuring protocol. The sex- and age-specific smoothed percentile curves with 5th, 10th, 25th, 50th, 75th, 90th, and 95th percentile for each anthropometric measure were constructed using Cole's LMS method.
In boys, both BMI and WC percentile curves increased by age, yet the 95th percentile curve for WHtR and WHtR(exp) decreased by age. In girls, the 95th percentile curve for BMI remained unchanged through the age of 15 to 18 years, yet the 90th and 95th percentile curves for WC and WHtR decreased by age.
This is the first study in Croatia to establish combined BMI, WC, WHtR and WHtR(exp) percentile curves and add some new insight on anthropometric measures in 15- to 18-year-old adolescents.
本研究的主要目的是为青少年建立体重指数（BMI）、腰围（WC）、腰高比（WHtR）和 WHtR(exp)的百分位曲线。
在这项横断面研究中，我们从随机选择的 8 所学校中招募了 1036 名 15 至 18 岁的中学生（55.3%为女生）。使用标准化的测量方案计算 BMI、WC、WHtR 和 WHtR(exp)。使用 Cole 的 LMS 方法构建了每个人体测量指标的性别和年龄特异性平滑百分位曲线，包括第 5、10、25、50、75、90 和 95 百分位。
在男孩中，BMI 和 WC 的百分位曲线随年龄增长而增加，但 WHtR 和 WHtR(exp)的第 95 百分位曲线随年龄下降。在女孩中，BMI 的第 95 百分位曲线在 15 至 18 岁时保持不变，但 WC 和 WHtR 的第 90 和 95 百分位曲线随年龄下降。
这是克罗地亚首次建立了 BMI、WC、WHtR 和 WHtR(exp)的联合百分位曲线，并为 15 至 18 岁青少年的人体测量指标提供了一些新的见解。
