Davies P S, Lucas A
MRC Dunn Nutrition Unit, Cambridge, U.K.
Early Hum Dev. 1989 Nov;20(2):135-41. doi: 10.1016/0378-3782(89)90054-6.
There is a dearth of body composition techniques suitable for use in young infants. We have investigated the ability of Quetelet's index (W/H2) to predict body fatness in a group of male and female infants at 5 and 11 weeks of age. Fat-free mass and hence fat mass was determined using an H2 18O dilution technique. FM/H2 and Quetelet's index were significantly correlated in all but the male, 11 week old infants. However Quetelet's index could not be used in a predictive capacity because of the poor variation accounted for by the relationships. It is possible that Quetelet's index is a poor method of predicting body fatness in young infants because of the very rapid changes that are occurring in body weight and length at that time.
适合用于小婴儿的身体成分测量技术匮乏。我们研究了体重身高指数（体重/身高²）预测一组5周和11周龄男婴和女婴体脂率的能力。采用¹⁸O标记水稀释技术测定去脂体重，进而得出脂肪量。除了11周龄男婴外，在所有婴儿中，脂肪量/身高²与体重身高指数均显著相关。然而，由于这种关系所解释的变异较差，体重身高指数无法用于预测。由于小婴儿时期体重和身长变化非常迅速，体重身高指数可能不是预测小婴儿体脂率的好方法。
