报告指出，黑人发病率高于白色人种。研究者还观察到，发病率在种族之间的这种差异随着年龄增长而减小，但不随着时间的变化而改变。
Incidence was higher among blacks than among whites, the report indicates. Racial differences in incidence decreased with age and have not changed over time, the researchers observed.
结论BF %可作为儿童青少年的肥胖诊断标准，但在不同性别和年龄中变化较大，应根据我国人种特点进行大样本的基础调查。
Conclusion BF % could be taken as a criterion for obesity diagnose in children and adolescent but it vary remarkably among different genders and ages.
结论BF %可作为儿童青少年的肥胖诊断标准，但在不同性别和年龄中变化较大，应根据我国人种特点进行大样本的基础调查。
Conclusion BF % could be taken as a criterion for obesity diagnose in children and adolescent but it vary remarkably among different genders and ages.
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