Table 1.
Distribution of baseline demographic and behavioral characteristics by age group.
| Characteristics | Overall (N=4085) | Age group
|
||||
|---|---|---|---|---|---|---|
| 18–24 (N=1231) | 25–34 (N=1245) | 35–44 (N=1082) | 45–54 (N=351) | 55–70 (N=176) | ||
| Country of residence, N (%) | ||||||
| US | 1326 (32.5) | 734 (59.6) | 209 (16.8) | 210 (19.4) | 99 (28.2) | 74 (42.0) |
| Brazil | 1410 (34.5) | 261 (21.2) | 509 (40.9) | 462 (42.7) | 123 (35.0) | 55 (31.3) |
| Mexico | 1349 (33.0) | 236 (19.2) | 527 (42.3) | 410 (37.9) | 129 (36.8) | 47 (26.7) |
| Race, N (%) | ||||||
| White | 1818 (44.5) | 668 (54.3) | 460 (36.9) | 445 (41.1) | 144 (41.0) | 101 (57.4) |
| Black | 636 (15.6) | 152 (12.3) | 210 (16.9) | 180 (16.6) | 69 (19.7) | 25 (14.2) |
| Asian/pacific islander | 112 (2.7) | 81 (6.6) | 13 (1.0) | 16 (1.5) | 1 (0.3) | 1 (0.6) |
| Other/mixed race | 1334 (32.7) | 248 (20.1) | 506 (40.6) | 403 (37.2) | 129 (36.8) | 48 (27.3) |
| Refused | 185 (4.5) | 82 (6.7) | 56 (4.5) | 38 (3.5) | 8 (2.3) | 1 (0.6) |
| Education (years), N (%) | ||||||
| <12 | 905 (22.2) | 142 (11.5) | 324 (26.0) | 295 (27.3) | 95 (27.1) | 49 (27.8) |
| 12 | 1086 (26.6) | 340 (27.6) | 347 (27.9) | 301 (27.8) | 79 (22.5) | 19 (10.8) |
| 13–15 | 1035 (25.3) | 565 (45.9) | 178 (14.3) | 176 (16.3) | 71 (20.2) | 45 (25.6) |
| 16 | 785 (19.2) | 161 (13.1) | 305 (24.5) | 212 (19.6) | 69 (19.7) | 38 (21.6) |
| ≥17 | 249 (6.1) | 16 (1.3) | 82 (6.6) | 93 (8.6) | 35 (10.0) | 23 (13.1) |
| Refused | 25 (0.6) | 7 (0.6) | 9 (0.7) | 5 (0.5) | 2 (0.6) | 2 (1.1) |
| Marital status, N (%) | ||||||
| Single | 1833 (44.9) | 1066 (86.6) | 500 (40.2) | 205 (18.9) | 48 (13.7) | 14 (8.0) |
| Married | 1391 (34.1) | 73 (5.9) | 437 (35.1) | 580 (53.6) | 189 (53.8) | 112 (63.6) |
| Cohabiting | 484 (11.8) | 80 (6.5) | 212 (17.0) | 148 (13.7) | 39 (11.1) | 5 (2.8) |
| Divorced/separated/widowed | 355 (8.7) | 6 (0.5) | 87 (7.0) | 144 (13.3) | 74 (21.1) | 44 (25.0) |
| Refused | 22 (0.5) | 6 (0.5) | 9 (0.7) | 5 (0.5) | 1 (0.3) | 1 (0.6) |
| Current smoker, N (%) | ||||||
| No | 3105 (76.0) | 978 (79.4) | 888 (71.3) | 825 (76.2) | 264 (75.2) | 150 (85.2) |
| Yes | 961 (23.5) | 247 (20.1) | 350 (28.1) | 253 (23.4) | 86 (24.5) | 25 (14.2) |
| Refused | 19 (0.5) | 6 (0.5) | 7 (0.6) | 4 (0.4) | 1 (0.3) | 1 (0.6) |
| Circumcision, N (%) | ||||||
| No | 2570 (62.9) | 582 (47.3) | 929 (74.6) | 746 (68.9) | 220 (62.7) | 93 (52.8) |
| Yes | 1515 (37.1) | 649 (52.7) | 316 (25.4) | 336 (31.1) | 131 (37.3) | 83 (47.2) |
| HPV status at baseline | ||||||
| Positive | 2135 (52.3) | 544 (44.2) | 725 (58.2) | 588 (54.3) | 185 (52.7) | 93 (52.8) |
| Negative | 1950 (47.7) | 687 (55.8) | 520 (41.8) | 494 (45.7) | 166 (47.3) | 83 (47.2) |
| Lifetime number of female sex partners, N (%) | ||||||
| 0–1 | 719 (17.6) | 339 (27.5) | 171 (13.7) | 153 (14.1) | 40 (11.4) | 16 (9.1) |
| 2–9 | 1621 (39.7) | 588 (47.8) | 517 (41.5) | 365 (33.7) | 103 (29.3) | 48 (27.3) |
| 10–49 | 1273 (31.2) | 240 (19.5) | 414 (33.3) | 400 (37.0) | 149 (42.5) | 70 (39.8) |
| ≥50 | 228 (5.6) | 21 (1.7) | 59 (4.7) | 92 (8.5) | 29 (8.3) | 27 (15.3) |
| Refused | 244 (6.0) | 43 (3.5) | 84 (6.7) | 72 (6.7) | 30 (8.5) | 15 (8.5) |
| Number of recent female sex partners (within past six months), N (%) | ||||||
| 0 | 1229 (30.1) | 347 (28.2) | 349 (28.0) | 347 (32.1) | 115 (32.8) | 71 (40.3) |
| 1 | 1654 (40.5) | 514 (41.8) | 496 (39.8) | 420 (38.8) | 154 (43.9) | 70 (39.8) |
| 2 | 525 (12.9) | 163 (13.2) | 171 (13.7) | 138 (12.8) | 39 (11.1) | 14 (8.0) |
| ≥3 | 528 (12.9) | 183 (14.9) | 173 (13.9) | 135 (12.5) | 23 (6.6) | 14 (8.0) |
| Refused | 149 (3.6) | 24 (1.9) | 56 (4.5) | 42 (3.9) | 20 (5.7) | 7 (4.0) |
| Lifetime number of male anal sex partners, N (%) | ||||||
| 0–1 | 3619 (88.6) | 1124 (91.3) | 1088 (87.4) | 940 (86.9) | 313 (89.2) | 154 (87.5) |
| 2–9 | 232 (5.7) | 57 (4.6) | 67 (5.4) | 77 (7.1) | 17 (4.8) | 14 (8.0) |
| ≥10 | 162 (4.0) | 39 (3.2) | 61 (4.9) | 44 (4.1) | 14 (4.0) | 4 (2.3) |
| Refused | 72 (1.8) | 11 (0.9) | 29 (2.3) | 21 (1.9) | 7 (2.0) | 4 (2.3) |
| Number of recent male anal sex partners (within past months), N (%) | ||||||
| 0 | 3832 (93.8) | 1151 (93.5) | 1149 (92.3) | 1023 (94.5) | 336 (95.7) | 173 (98.3) |
| ≥1 | 244 (6.0) | 78 (6.3) | 92 (7.4) | 57 (5.3) | 14 (4.0) | 3 (1.7) |
| Refused | 9 (0.2) | 2 (0.2) | 4 (0.3) | 2 (0.2) | 1 (0.3) | 0 (0.0) |
P values were derived using Monte Carlo estimation of the exact Pearson chi-squared test and were significant (P < 0.05) for all variables except lifetime number of male anal sex partners. Data reflect responses collected at baseline.