Neyzi O, Bundak R, Molzan J, Günöz H, Darendeliler F, Saka N
Department of Pediatrics, Istanbul Faculty of Medicine, University of Istanbul, Capa.
Acta Paediatr. 1993 Mar;82(3):239-44. doi: 10.1111/j.1651-2227.1993.tb12651.x.
We assessed the relationships between annual height velocity, calculated from two measurements taken at intervals of 6, 12 and 24 months, in 69 healthy prepubertal children (34 male, 35 female) aged 6.5 years (range 6.25-6.75 yrs) who were followed for 2.5 years and measured biannually. Initial height values for age were within normal ranges except for one child with a height SDS of -2.0. Mean annual velocities also conformed to British norms. Significant differences were observed between consecutive six-monthly velocities and these values failed to predict annual velocities calculated from measurements taken at 12- or 24-month intervals. Seasonal effects were thought to have some impact on the six-monthly velocity differences. Height velocity, based on measurements taken at intervals of 12 months, was essentially similar to two-year velocity values. The results indicate that in estimating annual height velocity, six-month intervals between measurements may be misleading while 12-monthly measurements are as reliable as height velocity values based on measurements taken at two-year intervals.
我们评估了69名健康的青春期前儿童（34名男性，35名女性）的年身高增长速度之间的关系，这些儿童年龄为6.5岁（范围6.25 - 6.75岁），随访2.5年，每半年测量一次。除了一名身高标准差为-2.0的儿童外，初始年龄身高值均在正常范围内。平均年增长速度也符合英国标准。连续两次半年期的增长速度之间存在显著差异，且这些值无法预测根据12个月或24个月间隔测量得出的年增长速度。认为季节效应可能对半年期增长速度差异有一定影响。基于12个月间隔测量的身高增长速度与两年期增长速度值基本相似。结果表明，在估计年身高增长速度时，测量间隔为6个月可能会产生误导，而每年测量一次与基于两年间隔测量的身高增长速度值一样可靠。
