Table 2. UVA and MVA of NSAID Use vs No NSAID Use.

Variable	UVA		MVA
	HR (95% CI)	P value	HR (95% CI)	P value
Local control	0.59 (0.31-1.10)	.10	0.60 (0.31-1.12)	.11
Disease-specific survival	0.82 (0.48-1.41)	.47	0.98 (0.57-1.70)	.44
Overall survival	0.63 (0.43-0.92)	.02	0.59 (0.38-0.90)	.02

Abbreviations: HR, hazard ratio; MVA, multivariate Cox proportional hazard regression model; NSAID, nonsteroidal anti-inflammatory drug; UVA, univariate Cox proportional hazard regression model.