三种骨龄评估法预测儿童成年身高与近似成年身高比较

目的3种骨龄评估法（GP图谱法、Tw2-RUS法、CHN法）结合相应的BP、TW2（叶氏改良）、CHN法进行正常儿童成年身高预测（PAH），并与到达的近似成年身高（NAH）相比较，以判断各方法的PAH与NAH的相关性及各方法的适用性。方法对48例正常儿童（男25例，女23例）的左手X片用GP、TW2-RUS、CHN法评估骨龄；再用BP、TW2叶氏改良法、CHN法测PAH，以此与各自NAH比较。结果男、女童PAH与NAH用TW2（叶氏）、CHN、BP法均有显著相关性（P〈0．05或P〈0．001）。方差分析显示女童组3种方法的PAH与NAH比较P均〉0．05；男童仅CHN法与BP法比较P〉0．05。结论TW2（叶氏）、CHN及BP3法在女童组不仅PAH，NAH间呈显著相关，且差异无显著性，提示女童组3法均适用于PAH评估；男童组则CHN法与BP法方法间差异无显著性，选择时慎之。

Comparison between mean predicted adult height and near adult height in normal children by three bone age evaluation methods

Objectives To evaluate the correlation between mean values of predicted adult height(PAH)and near adult height(NAH)in normal children by using various PAH methods according to their respective bone age(BA)assessment. Methods Forty-eight healthy children(25 boys,23 girl)in normal height were compared between its mean values of NAH and PAH by using three BA based methods for PAH estimation.The methods for BA assessment were GP,TW2-RUS,and CHN.Their relative PAH methods were BP,TW2-RUS (Ye modified)and CHN. Results Significant correlations were found between the mean values of NAH and PAH for girls and boys by TW2-RUS,CHN and BP methods (P<0.05 and P<0.001). None of the variant analysis among the mean PAH and NAH values with three methods for PAH estimation revealed significant difference(P>0.05 for all)in girls,and neither CHN method nor BP method showed significant difference in boys. Conclusions PAH estimated by TW2-Ye,CHN and BP methods were significantly correlated with their mean NAH values in normal boys and girls.Suitable application for estimation of PAH in normal children was shown by three methods for girls,but caution for boys was advised as CHN method and BP method showed no difference.