Table 2.

Percentage of Men With Persistent Oral HPV Infections at the 6-, 12-, 18-, and 24-Month Clinical Visits

HPV Type	No. of Men Positive at First Visit	Persistence at Second Visit (Month 6) (N = 184), n (%)	Persistence at Third Visit (Month 12) (N = 184), n (%)	Persistence at Fourth Visit (Month 18) (N = 173), n (%)	Persistence at Fifth Visit (Month 24) (N = 161), n (%)
16	50	18 (36.0)	14 (28.0)	12 (24.0)	9 (18.0)
18	14	2 (14.3)	2 (14.3)	3 (21.4)	1 (7.1)
31	10	3 (30.0)	4 (40.0)	3 (30.0)	3 (30.0)
33	5	3 (60.0)	2 (40.0)	1 (20.0)	1 (20.0)
35	8	4 (50.0)	3 (37.5)	2 (25.0)	1 (12.5)
39	22	14 (63.6)	11 (50.0)	8 (36.4)	7 (31.8)
45	8	4 (50.0)	2 (25.0)	1 (12.5)	1 (12.5)
51	31	10 (32.3)	7 (22.6)	6 (19.4)	6 (19.4)
52	23	7 (30.4)	3 (13.0)	3 (13.0)	2 (8.7)
56	17	8 (47.1)	5 (29.4)	5 (29.4)	4 (23.5)
58	7	1 (14.3)	2 (28.6)	2 (28.6)	1 (14.3)
59	7	6 (85.7)	4 (57.1)	4 (57.1)	1 (14.3)
68/73	2	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
High-risk HPV	184	76 (41.3)	58 (31.5)	49 (26.6)	37 (20.1)
Low-risk HPV	105	4 (3.8)	4 (3.8)	4 (3.8)	3 (2.9)

Any visit without detected HPV but preceded by a visit with positive infection and followed by 2 visits with positive infection was considered positive for a given HPV genotype (ie, +–+ +). Abbreviation: HPV, human papillomavirus.