Table 2:

Comparison of variables in LRC and LRF/univariate and multivariate analysis of variables in association with LRC

	Comparison of Variables			Univariate Analysis			Multivariate Analysis
	LRC	LRF	P Value	P Value	OR	95% CI	P Value	OR	95% CI
ADCprimary	1.18 ± 0.29	1.24 ± 0.3	NS	NS
ADCnode	1.09 ± 0.05	1.15 ± 0.03	NS	NS
ΔADCprimary	0.6 ± 0.31	0.23 ± 0.23	.0003	.004	6.85 × 10−4	0.48 × 10−5−0.1	.04	1.42 × 10−3	0.21 × 10−5−0.94
ΔADCnode	0.47 ± 0.11	0.32 ± 0.04	.01	.03	1.78 × 10−2	0.46 × 10−3−0.69	NS
Primary tumor volume (mm3)	9,612 ± 18,886	32,122 ± 65,012	.03	NS
Primary nodal volume (mm3)	7,106 ± 11,048	4,788 ± 6,999	.01	NS
ΔTVprimary	0.72 ± 0.14	0.69 ± 0.13	NS	NS
ΔTVnode	0.71 ± 0.19	0.56 ± 0.19	.02	002	1.23 × 10−3	0.52 × 10-5−0.29	NS
Age (yr)	69.3 ± 9.67	66.9 ± 12.6	NS	NS
T (T1–2 vs T3–4)	7/14	8/6	NS	NS
N (0–1 vs 2–3)	7/14	3/11	.02	.02	4.16	1.23–21.55	NS
Tumor location (hypopharynx or oral cavity vs others)	4/17	9/5	003	.03	0.22	0.05–0.88	NS

Note:—NS indicates a P value >.05.