Table 1.

Characteristics of Participants at Retest (Baseline) in the HPV in Men (HIM) Study, Brazil, Mexico, and the United States, 2005–2006

Variable	Brazil (n = 338)		Mexico (n = 327)		United States (n = 404)		Combined Population (n = 1,069)
	No.	%	No.	%	No.	%	No.	%
Age, years
18–19	11	3.3	14	4.3	93	23.0	118	11.0
20–24	51	15.1	48	14.7	153	37.9	252	23.6
25–29	63	18.6	70	21.4	41	10.2	174	16.3
30–34	71	21.0	65	19.9	30	7.4	166	15.5
35–39	44	13.0	56	17.1	34	8.4	134	12.5
40–44	50	14.8	60	18.4	26	6.4	136	12.7
45–70	48	14.2	14	4.3	27	6.7	89	8.3
Refused to responda	0	0.0	0	0.0	0	0.0	0	0.0
Median age, years	33		33		23		30
Race
White	207	61.2	15	4.6	296	73.3	518	48.5
Black	101	29.9	0	0.0	53	13.1	154	14.4
Asian/Pacific Islander	3	0.9	0	0.0	22	5.5	25	2.3
American Indian	20	5.9	0	0.0	0	0.0	20	1.9
Mixed/other	0	0.0	311	95.1	33	8.2	344	32.2
Refused to respond	7	2.1	1	0.3	0	0.0	8	0.8
Ethnicity
Hispanic	63	18.6	327	100.0	52	12.9	442	41.4
Non-Hispanic	265	78.4	0	0.0	351	86.9	616	57.6
Refused to respond	10	3.0	0	0.0	1	0.3	11	1.0
Marital status
Single, never married	148	43.8	87	26.6	294	72.8	529	49.5
Married	99	29.3	186	56.9	58	14.4	343	32.1
Cohabitating	59	17.5	36	11.0	19	4.7	114	10.7
Divorced/widowed	31	9.2	18	5.5	31	7.7	80	7.5
Refused to respond	1	0.3	0	0.0	2	0.5	3	0.3
Education, years
<12	82	24.3	112	34.3	3	0.7	197	18.4
12	14	4.1	77	23.6	57	14.1	148	13.8
13–16	234	69.2	123	37.6	306	75.7	663	62.0
≥17	8	2.4	14	4.3	36	8.9	58	5.4
Refused to respond	0	0.0	1	0.3	2	0.5	3	0.3
Age at first sexual intercourse, yearsb
<15	93	30.7	32	10.6	54	14.1	179	18.1
15–17	137	45.2	129	42.9	189	49.4	455	46.1
18–19	42	13.9	71	23.6	92	24.0	205	20.8
20–42	24	7.9	68	22.6	38	9.9	130	13.2
Refused to respond	7	2.3	1	0.3	10	2.6	18	1.8
Median age at first intercourse, years	16		17		17		17
Lifetime no. of female sex partnersb
0	23	7.1	23	7.1	19	4.8	65	6.2
1	23	7.1	22	6.8	45	11.3	90	8.6
2–9	92	28.3	191	59.1	174	43.8	457	43.7
10–19	50	15.4	41	12.7	58	14.6	149	14.3
20–49	72	22.2	35	10.8	58	14.6	165	15.8
50–1,000	24	7.4	5	1.6	27	6.8	56	5.4
Refused to respond	41	12.6	6	1.9	16	4.0	63	6.0
Median no. of female sex partners	10		5		6		6
Ever having sex with a manb
Yes	110	34.5	39	12.8	42	10.7	191	18.8
No	204	63.8	266	87.2	348	89.0	818	80.5
Refused to respond	6	1.9	0	0.0	1	0.3	7	0.7

Abbreviation: HPV, human papillomavirus.

^aParticipant chose the “refuse” option for that specific question.

^bNumbers do not add up to 1,069 because of missing observations.