中国成人基础代谢率实测值与公式预测值的比较

CROSS-VALIDATION FOR MEASURED AND PREDICTED BASAL METABOLIC RATE IN CHINESE ADULTS

目的: 比较基础代谢率(BMR)的种族差异和气候影响,对应用BMR预测公式于中国人群的效果进行评价。方法: 收集国内外华裔人群的BMR检测数据,对实测结果进行综合统计,并与公式预测值进行比较。结果: 各公式预测值与实测值均有良好的相关性,平均误差<5%。多数情况下,预测值在南方偏高,在北方偏低。Liu公式的预测误差与体重和身高呈负相关,Henry公式的预测误差与各参数均无显著相关。结论: 现有数据不支持中国人与白种人的BMR有人种差异,南方地区人群的BMR有偏低的趋势。综合比较,Henry公式的预测值更接近中国成人实测值。

Objective:To estimate the validation of BMR predictive equations applied in Chinese population and to analyze racial and climatic influence on BMR. Methods: BMR data tested in Chinese were collected and combined for re-analysis. These measured BMR were compared with the prediction of commonly used equations. Results:The prediction of adopted equations was well associated with measured values (P<0.05), and the average bias was less than 5%. In most of cases, the 3 equations predicted lower BMRs in southern and higher BMRs in northern populations. The predicted bias of Liu-equation was negatively correlated with weight and height (P<0.01), as that of Henry-equation was significantly correlated with neither variables (P>0.05). Conclusion:There is no racial BMR difference between Chinese and Caucasian. BMR in southern population tended to be lower. Comprehensively, the prediction of Henry-equation was closer to measured BMR in Chinese adult population.