Table 1.
Characteristics of Chinese MSM who had sexual debut with a male or female sexual partner (N = 3588)
| Characteristics | Total N = 3588 n (%) |
Sexual debut |
χ2 or z-statistics | p value | |
|---|---|---|---|---|---|
| With a man N = 2538 n (%) |
With a woman N = 1050 n (%) |
||||
| Age (year) | 352.654 (χ2) –18.349 (z) |
<0.001* | |||
| Median (IQR) | 28 (24–33) | 27 (24–31) | 32 (27–40) | ||
| <25 | 914 (25.5) | 764 (30.1) | 150 (14.3) | ||
| 25–34 | 1927 (53.7) | 1440 (56.7) | 487 (46.4) | ||
| 35–44 | 536 (14.9) | 265 (10.5) | 271 (25.8) | ||
| ≥45 | 211 (5.9) | 69 (2.7) | 142 (13.5) | ||
| Age of sexual debut (year) | 36.355 (χ2) –6.203 (z) |
<0.001* | |||
| Median (IQR) | 20 (18–23) | 20 (18–22) | 21 (19–24) | ||
| ≤18 | 995 (27.7) | 749 (29.5) | 246 (23.4) | ||
| 19–22 | 1642 (45.8) | 1186 (46.7) | 456 (45.8) | ||
| ≤23 | 951 (26.5) | 603 (23.8) | 951 (26.5) | ||
| Ethnicity | 1.254 | 0.263 | |||
| Han | 3361 (93.7) | 2370 (93.4) | 991 (94.4) | ||
| Non-Han | 227 (6.3) | 168 (6.6) | 59 (5.6) | ||
| Current marital status | 559.229 | <0.001 | |||
| Single | 3049 (85.0) | 2387 (94.0) | 662 (63.0) | ||
| Married | 539 (15.0) | 151 (6.0) | 388 (37.0) | ||
| Education (year of schooling) | 235.261 | <0.001 | |||
| College and above (>12) | 2579 (71.9) | 2010 (79.2) | 569 (54.2) | ||
| Senior high (10–12) | 593 (16.5) | 327 (12.9) | 266 (25.3) | ||
| Junior middle school and less (≤9) |
416 (11.6) | 201 (7.9) | 215 (20.5) | ||
| Employment | 117.416 | <0.001 | |||
| Employed | 2960 (82.5) | 2031 (80.0) | 929 (88.5) | ||
| Unemployed/retired | 182 (5.1) | 109 (4.3) | 73 (6.9) | ||
| Student | 388 (10.8) | 363 (14.3) | 25 (2.4) | ||
| Other | 58 (1.6) | 35 (1.4) | 23 (2.2) | ||
| Personal monthly income, Chinese yuan | 0.258 | 0.612 | |||
| <5000 | 1698 (47.3) | 1208 (47.6) | 490 (46.7) | ||
| ≥5000 | 1890 (52.7) | 1330 (52.4) | 560 (53.3) | ||
| Health insurance | 36.048 | <0.001 | |||
| No | 1395 (38.9) | 907 (35.7) | 488 (46.5) | ||
| Yes | 2193 (61.1) | 1631 (64.3) | 562 (53.5) | ||
| Perception of HIV risk prior to HIV diagnosis | 7.570 | 0.006 | |||
| Likely/very likely | 1462 (40.7) | 1071 (42.2) | 391 (37.2) | ||
| Low/no risk | 2126 (59.3) | 1467 (57.8) | 659 (62.8) | ||
| Sex-finding venue | 160.794 | <0.001 | |||
| Internet | 2838 (79.1) | 2148 (84.6) | 690 (65.7) | ||
| Non-Internet** | 750 (20.9) | 390 (15.4) | 360 (34.3) | ||
| Migrant (No Beijing Hukou) | 27.021 | <0.001 | |||
| No | 889 (24.8) | 690 (27.2) | 199 (18.9) | ||
| Yes | 2699 (75.2) | 1848 (72.8) | 851 (81.1) | ||
| Year of living in Beijing | 18.267 | <0.001 | |||
| ≤5 | 1533 (42.7) | 1142 (45.0) | 391 (37.2) | ||
| >5 | 2055 (57.3) | 1396 (55.0) | 659 (62.8) | ||
| Residence of origin | 39.715 | <0.001 | |||
| City | 2437 (67.9) | 1804 (71.1) | 633 (60.3) | ||
| Township/village | 1151 (32.1) | 734 (28.9) | 417 (39.7) | ||
| HIV infection | 1.019 | 0.313 | |||
| No | 3133 (87.3) | 2207 (87.0) | 926 (88.2) | ||
| Yes | 455 (12.7) | 331 (13.0) | 124 (11.8) | ||
| Syphilis infection | 5.145 | 0.023 | |||
| No | 3319 (92.5) | 2364 (93.1) | 955 (90.9) | ||
| Yes | 269 (7.5) | 174 (6.9) | 95 (9.1) | ||
*
p < 0.001 for both Chi square Test (categorical age and age of sexual debut) and Wilcoxon Rank-Sum Test (continuous age and age of sexual debut)
**
Park, bar or night/dance club, public bathroom, fitness center/gym, public restroom, college dormitory, beach, woods, street, theater, public transportation, hotel and private homes
IQR interquartile rage; Hukou household registration; 1 Chinese yuan ≈ 0.15 US dollar