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运用指标聚类分析法对南京市1444名健康男女儿童青少年手、腕部的48项骨化指标进行筛选,根据聚类结果,结合实际需要48项指标聚成9类。并根据R~2值的大小在各类中挑选一个有代表性的指标作为典型指标。对手、腕部的典型骨化指标与各生长发育期的关系作了初步分析。
Forty-eight ossification indexes of hand and wrist of 1444 healthy boys, children and adolescents in Nanjing were screened by cluster analysis of indicators. According to the clustering results, 48 indexes were combined into 9 categories according to the actual needs. According to the value of R ~ 2, we choose a representative index in each category as a typical index. Opponent, wrist typical ossification indicators and the relationship between the growth and development for a preliminary analysis.