Demographics of app-using and non-app-using MSM
| Non-app-using MSM (n=3347) n (%) | App-using MSM (n=1588) n (%) | P value* | |
| Age | |||
| <25 | 1316 (39.3) | 461 (29.0) | <0.01 |
| 25–40 | 1618 (48.4) | 1030 (64.9) | |
| >40 | 412 (12.3) | 97 (6.1) | |
| Age (median, IQR) | 26 (23, 33) | 27 (24, 31) | <0.05 |
| Duration of residence in Shenzhen (year) | |||
| <1 | 802 (25.5) | 360 (24.0) | 0.299 |
| ≥1 | 2342 (74.5) | 1137 (76.0) | |
| Ethnicity | |||
| Han | 3237 (97.8) | 1524 (97.1) | 0.215 |
| Other | 74 (2.2) | 45 (2.9) | |
| Education | |||
| Junior high school or less | 637 (19.0) | 146 (9.2) | <0.01 |
| Senior high school | 1301 (38.9) | 425 (26.8) | |
| College or above | 1409 (42.1) | 1017 (64.0) | |
| Monthly income (¥) | |||
| <3000 | 196 (5.9) | 123 (7.7) | <0.01 |
| 3000–7000 | 2337 (69.8) | 923 (58.1) | |
| >7000 | 814 (24.3) | 542 (34.1) | |
| Marital status | |||
| Unmarried | 3015 (90.1) | 1461 (92.0) | <0.05 |
| Married | 332 (9.9) | 127 (8.0) | |
| Year of sample | |||
| 2015 | 1254 (37.5) | 118 (7.4) | <0.01 |
| 2016 | 949 (28.4) | 567 (35.7) | |
| 2017 | 1144 (34.2) | 903 (56.9) | |
| Source of sample | |||
| Venue based | 1953 (58.4) | 483 (30.4) | <0.01 |
| Clinic based | 1394 (41.6) | 1105 (69.6) | |
| Type of MSM | |||
| NcMSM | 2117 (63.3) | 1496 (94.2) | <0.01 |
| MB | 1230 (36.7) | 92 (5.8) | |
| HIV | |||
| Negative | 3005 (89.8) | 1414 (89.0) | 0.458 |
| Positive | 342 (10.2) | 174 (11.0) | |
| Syphilis | |||
| Negative | 2983 (89.1) | 1419 (89.4) | 0.844 |
| Positive | 364 (10.9) | 169 (10.6) | |
| Previous diagnosis of other STDs | |||
| No | 3119 (93.2) | 1430 (90.1) | <0.01 |
| Yes | 228 (6.8) | 158 (9.9) | |
*All P values in this column were derived from the comparison between non-app-using MSM and app-using MSM.
MB, money boy (male sex worker); MSM, men who have sex with men; NcMSM, non-commercial MSM; STD, sexually transmitted disease.