Table 4.

Association of Log-Transformed Post HPV Vaccination Titers with Days Between Dose 2 and Dose 3

Variable	HPV-6		HPV-11		HPV-16		HPV-18
	Coefficient (SE)	P-value	Coefficient (SE)	P-value	Coefficient (SE)	P-value	Coefficient (SE)	P-value
Days between Doses 2 & 3	0.002 (0.001)	0.074	0.003 (0.001)	<0.001	0.002 (0.001)	0.049	0.002 (0.001)	0.039
Age	−0.067 (0.037)	0.072	−0.096 (0.032)	0.003	−0.059 (0.035)	0.095	−0.066 (0.039)	0.087
White (ref: Non-white)	0.108 (0.209)	0.605	−0.155 (0.182)	0.398	0.099 (0.199)	0.621	−0.367 (0.218)	0.095
Body mass index	−0.005 (0.014)	0.741	−0.016 (0.013)	0.200	−0.011 (0.014)	0.445	−0.018 (0.015)	0.243
Smoker (ref: non-smoker)	−0.205 (0.309)	0.508	−0.134 (0.270)	0.620	−0.411 (0.297)	0.168	−0.754 (0.327)	0.022
Intercept	7.980 (0.919)	<0.001	9.123 (0.797)	<0.001	9.759 (0.878)	<0.001	8.619 (0.964)	<0.001

HPV=Human papillomavirus; SE=Standard error; R²= the proportion of variability in the data accounted for by the model. For HPV-6, R²=0.051, for HPV-11, R²=0.184, for HPV-16, R²=0.063, for HPV18, R²=0.102