The Classification of the Persistent Infection Risk for Human Papillomavirus among HIV-Negative Men Who Have Sex with Men: Trajectory Model Analysis

Table 1

Comparison of different HPV trajectory models from GBTM analysis among 361 HIV-negative MSM in Urumqi, China.

	BIC^a	AvePP^b	Members make up for the overall proportion [ (%)]
			Trajectory 1	Trajectory 2	Trajectory 3	Trajectory 4
One-trajectory model	-1455.35	1.000	361 (100.0)	-	-	-
Two-trajectory model	-1323.76	0.908	221 (61.2)	140 (38.8)	-	-
Three-trajectory model	-1311.32	0.876	161 (44.6)	179 (49.6)	21 (5.8)	-
Four-trajectory model	-1305.82	0.854	151 (41.8)	167 (46.3)	22 (6.1)	21 (5.8)

When the number of , the . MSM: men who have sex with men; HIV: human immunodeficiency virus; HPV: human papillomavirus; GBTM: group-based trajectory modeling. ^aBIC: Bayesian information criteria, wherein the largest value indicates the best-fitting model. ^bAvePP: average posterior probability, with values closer to 1 indexing greater precision, and the minimum threshold of this value was 0.7 for individuals.