Table 3.

Results of the Multivariable Cox Step Wise^* Regression Model for Patients who were Tested for HPV (n=149^**)

Risk factor	HR (95% CI)	p-value
Age	1.03 (1.004-1.050)	0.02+
Race		0.003
White	1.0^
Black	1.9 (1.25-2.90)
Gender		0.04
M	1.0
F	1.7 (1.02-2.73)
Smoking and drinking		0.03
No	1.0
Yes	1.8 (1.06-2.92)
HPV16 Status		0.003
Positive	1.0
Negative	2.1 (1.30-3.44)

^*Two probabilities 0.25 and 0.15 were selected for entering and staying in the model, respectively.

⁺testing for non-linearity was done, p-value=0.13.

^**These 149 patients had complete records and therefore were entered into multivariable regression model.

^{^}A reference category