Table 1. Demographic and behavioral characteristics of college students and their social contacts among MSM in Northeast China, 2017-2018 (N=1,141).
| Factors | College students, n=759 | Social contacts, n=382 | Total, N=1,141 |
| n (%) | n (%) | n (%) | |
| Abbreviation: PLADs=provincial-level administrative divisions; MSM=men who have sex with men; IQR=interquartile range; HIV=human immunodeficiency virus; PY=person-years. * Age and number of social contacts are skewed distributions; hence, we present median and interquartile range. † Total number is of men who had anal sex in the past 6 months. PY stands for person-years. When numbers do not add to the expected sample size, it means that some men did not answer a given question. | |||
| Age (years)* | |||
| Median | 22 | 33 | 24 |
| IQR | 20–26 | 26–47 | 21–33 |
| Ethnic | |||
| Han | 736 (97.0) | 370 (96.9) | 1,106 (96.9) |
| Minority | 22 (2.9) | 8 (2.1) | 30 (2.6) |
| Marital status | |||
| Married | 25 (3.3) | 47 (12.3) | 72 (6.3) |
| Unmarried | 729 (96.0) | 334 (87.4) | 1,063 (93.2) |
| Residence | |||
| Local | 422 (55.6) | 254 (66.5) | 676 (59.2) |
| Other cities/PLADs | 336 (44.3) | 128 (33.5) | 464 (40.7) |
| Time spent locally | |||
| <12 months | 126 (16.6) | 42 (11.0) | 168 (14.7) |
| 12–24 | 164 (21.6) | 56 (14.7) | 220 (19.3) |
| >24 months | 468 (61.7) | 284 (74.3) | 752 (65.9) |
| Sexual orientation | |||
| Homosexual | 574 (75.6) | 271 (70.9) | 845 (74.1) |
| Heterosexual | 17 (2.2) | 8 (2.1) | 25 (2.2) |
| Bisexual | 115 (15.2) | 81 (21.2) | 196 (17.2) |
| Uncertain | 52 (6.9) | 22 (5.8) | 74 (6.5) |
| Perceived risk of HIV infection | |||
| No-low | 533 (70.2) | 223 (58.4) | 756 (66.3) |
| Moderate | 171 (22.5) | 118 (30.9) | 289 (25.3) |
| High-very high | 55 (7.3) | 41 (10.7) | 96 (8.4) |
| Having anal sex in the past 6 months | |||
| Yes | 376 (49.5) | 266 (69.6) | 642 (56.3) |
| No | 330 (43.5) | 116 (30.4) | 446 (39.1) |
| Condom use with male partners in the past 6 months† | |||
| Never | 23 (6.1) | 16 (6.0) | 39 (6.1) |
| Sometimes | 174 (46.3) | 91 (34.2) | 265 (41.3) |
| Every time | 179 (47.6) | 158 (59.4) | 337 (52.5) |
| Number of regular partners in the past 6 months† | |||
| 0 | 48 (12.8) | 42 (15.8) | 90 (14.0) |
| 1 | 231 (61.4) | 148 (55.6) | 379 (59.0) |
| 2 | 74 (19.7) | 53 (19.9) | 127 (19.8) |
| ≥3 | 23 (6.1) | 23 (8.6) | 46 (7.2) |
| Any recreational drug use in the past 6 months | |||
| Yes | 139 (18.3) | 103 (27.0) | 242 (21.2) |
| No | 619 (81.6) | 279 (73.0) | 898 (78.7) |
| Ever had HIV self-test | |||
| Yes | 282 (37.2) | 124 (32.5) | 406 (35.6) |
| No | 424 (55.9) | 257 (67.3) | 681 (59.7) |
| Syphilis status | |||
| Negative | 698 (92.0) | 329 (86.1) | 1,027 (90.0) |
| Positive | 60 (7.9) | 51 (13.4) | 111 (9.7) |
| Not sure | 1 (0.1) | 2 (0.5) | 3 (0.3) |
| Number of social contacts* | |||
| Median | 0 | 2 | 0 |
| IQR | 0–0 | 1–3 | 0–1 |
| HIV status | |||
| Negative | 725 (95.5) | 318 (83.2) | 1,043 (91.4) |
| Positive | 34 (4.5) | 64 (16.8) | 98 (8.6) |
| HIV positive rate | |||
| Baseline (%) | 29 (3.8) | 53 (13.9) | 82 (7.2) |
| Follow-up (per 100 PY) | 5 (2.9) | 11 (10.5) | 16 (5.8) |