Table 3.

Difference in Competitive Luminex Immunoassay Geometric Mean Titers Between 24 and 120 Months Postvaccination as Estimated by a Linear Mixed Model

	Girls				Women
	2D		3D		3D
	Log Difference (95% CI)	P Value	Log Difference (95% CI)	P Value	Log Difference (95% CI)	P Value	P Value for Difference of Differences, 2D Girls vs 3D Women	P Value for Difference of Differences, 3D Girls vs 3D Women	P Value for Difference of Differences, 2D Girls vs 3D Girls
HPV6	0.66 (0.39–0.93)	<.001	0.65 (0.51–0.78)	<.001	0.61 (0.32–0.91)	.002	.90	.94	.92
HPV11	1.04 (0.89–1.19)	<.001	0.98 (0.81–1.15)	<.001	0.84 (0.48–1.20)	<.001	.20	.36	.59
HPV16	0.81 (0.61–1.02)	<.001	0.95 (0.79–1.11)	<.001	0.82 (0.43–1.22)	.002	.98	.50	.30
HPV18	0.93 (0.65–1.21)	<.001	1.11 (0.94–1.29)	<.001	0.90 (0.45–1.35)	.003	.96	.44	.26

Abbreviations: 2D, 2 doses; 3D, 3 doses; CI, confidence interval; HPV, human papillomavirus.