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. 2023 May 25;15:100217. doi: 10.1016/j.lansea.2023.100217

Table 2.

Baseline characteristics and PrEP initiation among participants in the COPE study for young men who have sex with men and transgender women who exchange sex, Thailand (2018–2020) (n = 846).

All participants
Initiation of PrEP use during study participation
N Immediate n (%) Delayed n (%) None n (%) p-value
846 531 (62.8%) 104 (12.3%) 211 (24.9%)
Study site <0.001
 Silom Community Clinic at Tropmed 480 319 (66.5%) 70 (14.6%) 91 (19.0%)
 Service Workers in Group Foundation Bangkok 133 86 (64.7%) 17 (12.8%) 30 (22.6%)
 Rainbow Sky Association of Thailand 207 123 (59.4%) 15 (7.2%) 69 (33.3%)
 Service Workers in Group Foundation Pattaya 26 3 (11.5%) 2 (7.7%) 21 (80.8%)
Sociodemographic
Years of age 0.18
 18-20 189 117 (61.9%) 20 (10.6%) 52 (27.5%)
 21-23 359 214 (59.6%) 47 (13.1%) 98 (27.3%)
 24-26 297 200 (67.3%) 37 (12.5%) 60 (20.2%)
Completed University education 0.018
 No 388 224 (57.7%) 54 (13.9%) 110 (28.4%)
 Yes 457 307 (67.2%) 50 (10.9%) 100 (21.9%)
Currently at school 0.42
 No 396 249 (62.9%) 54 (13.6%) 93 (23.5%)
 Yes 450 282 (62.7%) 50 (11.1%) 118 (26.2%)
Income from work, including sex work 0.40
 No 244 147 (60.2%) 29 (11.9%) 68 (27.9%)
 Yes 581 371 (63.9%) 74 (12.7%) 136 (23.4%)
Sufficient income to meet basic needs 0.71
 No 88 58 (65.9%) 11 (12.5%) 19 (21.6%)
 Yes 744 462 (62.1%) 92 (12.4%) 190 (25.5%)
Currently in a relationship 0.52
 No 529 338 (63.9%) 60 (11.3%) 131 (24.8%)
 Yes 316 193 (61.1%) 44 (13.9%) 79 (25.0%)
Gender identitya 0.046
 Man, gay, or bisexual 758 489 (64.5%) 89 (11.7%) 180 (23.7%)
 Woman or transgender woman 73 35 (47.9%) 12 (16.4%) 26 (35.6%)
 Other or don't know 15 7 (46.7%) 3 (20.0%) 5 (33.3%)
Sexual behavior
Last time had anal sex with man 0.008
 Within 30 days 518 340 (65.6%) 68 (13.1%) 110 (21.2%)
 More than 30 days 149 85 (57.0%) 12 (8.1%) 52 (34.9%)
 Don't know or refused to answer 179 106 (59.2%) 24 (13.4%) 49 (27.4%)
Used condom during last anal sex <0.001
 No 214 104 (48.6%) 50 (23.4%) 60 (28.0%)
 Yes 615 422 (68.6%) 52 (8.5%) 141 (22.9%)
 Don't know 17 5 (29.4%) 2 (11.8%) 10 (58.8%)
Used alcohol or drugs during anal sex in last 7 days 0.65
 No 512 321 (62.7%) 58 (11.3%) 133 (26.0%)
 Yes 91 61 (67.0%) 11 (12.1%) 19 (20.9%)
 Don't know or refused to answer 243 149 (61.3%) 35 (14.4%) 59 (24.3%)
Clinical testing
Tested for HIV in last 6 months <0.001
 No 272 142 (52.2%) 42 (15.4%) 88 (32.4%)
 Yes 574 389 (67.8%) 62 (10.8%) 123 (21.4%)
Chlamydia infection 0.026
 No 722 442 (61.2%) 88 (12.2%) 192 (26.6%)
 Yes 124 89 (71.8%) 16 (12.9%) 19 (15.3%)
Gonorrhea infection 0.060
 No 803 498 (62.0%) 98 (12.2%) 207 (25.8%)
 Yes 42 32 (76.2%) 6 (14.3%) 4 (9.5%)
Syphilis infection 0.25
 No 799 497 (62.2%) 98 (12.3%) 204 (25.5%)
 Yes 47 34 (72.3%) 6 (12.8%) 7 (14.9%)
Pre-exposure prophylaxis (PrEP)
Ever heard of PrEP before 0.11
 No 123 67 (54.5%) 19 (15.4%) 37 (30.1%)
 Yes 722 464 (64.3%) 85 (11.8%) 173 (24.0%)
Ever taken PrEP before <0.001
 No 694 412 (59.4%) 91 (13.1%) 191 (27.5%)
 Yes 151 119 (78.8%) 13 (8.6%) 19 (12.6%)
Know where to get PrEP 0.21
 No 158 90 (57.0%) 21 (13.3%) 47 (29.7%)
 Yes 687 441 (64.2%) 83 (12.1%) 163 (23.7%)
Know others who use PrEP 0.001
 No 461 266 (57.7%) 59 (12.8%) 136 (29.5%)
 Yes 384 265 (69.0%) 45 (11.7%) 74 (19.3%)
Willing to take PrEP every day <0.001
 No 199 50 (25.1%) 30 (15.1%) 119 (59.8%)
 Yes 646 481 (74.5%) 74 (11.5%) 91 (14.1%)

p-values based on Pearson's chi-squared test comparing all three PrEP initiation categories.

Immediate PrEP initiation defined as starting PrEP on day of study enrollment.

Delayed PrEP initiation defined as starting PrEP after day of study entry.

a

Gender identity classification reported here reflects multiple identities in Thailand that embody both sexual and gender preferences and expression; see text.