Table 3.

Factor analysis results of BW, BMI, and DXA-related parameters of 69 patients with OCC treated with postoperative adjuvant CCRT and 54 patients with NOCC treated with primary CCRT.

	OCC with Postoperative Adjuvant CCRT				NOCC with Primary CCRT
	Factor				Factor
Component	1	2	3	4	1	2	3	4
BW	0.766	−0.103	−0.092	0.614	0.834	0.500	−0.195	−0.054
BMI	0.804	−0.115	−0.082	0.508	0.656	0.656	−0.268	−0.016
LBM	0.265	−0.110	0.102	0.931	0.965	0.127	−0.193	−0.007
ASM	0.287	−0.121	0.867	0.897	0.956	0.180	−0.175	−0.048
TFM	0.930	−0.084	−0.337	0.302	0.514	0.827	−0.162	−0.056
Android	0.937	−0.072	−0.093	0.155	0.353	0.863	−0.219	−0.080
Gynoid	0.964	−0.052	−0.061	−0.032	0.032	0.935	−0.064	−0.155
ΔBW%	0.005	0.460	0.732	−0.348	−0.185	−0.267	0.790	0.390
ΔBMI%	0.043	0.400	0.717	−0.341	−0.134	−0.305	0.794	0.362
ΔLBM%	−0.072	0.031	0.923	−0.046	−0.223	−0.062	0.886	−0.239
ΔASM%	−0.086	0.137	0.887	0.042	−0.134	−0.048	0.853	−0.014
ΔTFM%	−0.133	0.900	0.322	−0.172	−0.063	−0.105	0.200	0.951
ΔAndroid%	−0.193	0.895	−0.150	−0.081	−0.089	−0.125	0.182	0.907
ΔGynoid%	0.019	0.936	−0.049	0.005	0.076	−0.016	−0.222	0.942
Eigenvalue	4.51	2.21	1.27	1.06	4.82	2.04	1.42	1.05
% of accumulative variances	45.1	67.2	79.9	90.5	48.2	68.6	82.8	93.8

BW, body weight; BMI, body mass index; DXA, dual-energy X-ray absorptiometry; OCC, oral cavity cancer; NOCC, non-oral cavity cancer; CCRT, concurrent chemoradiotherapy; LBM, lean body mass; TFM, total fat mass; ASM, appendicular skeletal muscle. Δ indicates a value obtained by subtracting the pretreatment value from the post-treatment value. % indicates (Δ value/pretreatment value) × 100%.