表 2.

CSA与QMV、身高、体质量之间的相关性分析

Correction analysis between CSA and QMV, height and weight

Items	Unaffected side				Affected side
	r	R 2	P value		r	R 2	P value
QMV, quadriceps muscle volume. CSA-18, CSA-15, CSA-12 represent quadriceps cross-sectional area (CSA) at the upper edge of the patella at 18 cm, 15 cm and 12 cm, respectively.
QMV
CSA-18	0.891	0.793	＜0.001		0.953	0.909	＜0.001
CSA-15	0.843	0.711	＜0.001		0.926	0.857	＜0.001
CSA-12	0.808	0.652	＜0.001		0.904	0.818	＜0.001
Height	0.404	0.163	0.062		0.447	0.199	0.037
Weight	0.705	0.497	＜0.001		0.658	0.433	0.001
Height
CSA-18	0.135	0.018	0.548		0.247	0.061	0.268
CSA-15	0.058	0.003	0.796		0.197	0.039	0.378
CSA-12	-0.025	0.001	0.912		0.196	0.038	0.383
Weight
CSA-18	0.657	0.432	0.001		0.571	0.326	0.005
CSA-15	0.597	0.357	0.003		0.567	0.322	0.006
CSA-12	0.509	0.259	0.016		0.508	0.258	0.016