Table 2.

Individual and comprehensive Cox regression models predicting the persistence or recurrence of WDTC

Table 2
	n	number with persistence or recurrence	hazard ratio	95% CI	p
Patient-associated factors	354	44			0.02
Gender			0.54	0.28, 1.03	0.06
Age			0.97	0.93, 1.01	0.09
Ethnicity			1.17	0.96, 1.42	0.12
Interaction of age and time to persistence or recurrence			1.03	1.01, 1.06	0.01
Tumor-associated factors	368	39			0.80
Size (dichotomized)			0.81	0.28, 2.32	0.70
Number of foci			0.88	0.61, 1.27	0.48
Histology			0.89	0.53, 1.49	0.66
Comprehensive model	309	37			0.04
Gender			0.57	0.27, 1.21	0.14
Age			0.95	0.90, 0.99	0.02
Ethnicity			1.17	0.96, 1.44	0.13
Tumor size			0.57	0.19, 1.68	0.31
Number of foci			0.94	0.65, 1.36	0.74
Histology			0.68	0.32, 1.44	0.31
Interaction of age and time to recurrence or persistence			1.04	1.02, 1.07	<0.01