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. Author manuscript; available in PMC: 2022 Oct 11.
Published in final edited form as: Ann Epidemiol. 2022 Apr 8;72:1–8. doi: 10.1016/j.annepidem.2022.03.012

Table 1.

Recent sex work, sociodemographic characteristics, and study involvement at the COPE study baseline (October 2017 – August 2019) among Thai MSM and TGW who exchanged sex in the prior 12 months (n=890).

Total Indication of sex work in last 30 days from any question Indication of sex work from primary or secondary questions
No (n=460) Yes (n=430) Primary (n=270) Secondary only (n=160)
n (%) n (%) n (%) p n (%) n (%) p
Years of age 0.28 0.15
 18–20 200 (22) 110 (24) 90 (21) 50 (19) 40 (25)
 21–23 381 (43) 186 (41) 195 (45) 121 (45) 74 (46)
 24–26 308 (35) 163 (36) 145 (34) 99 (37) 46 (29)
Currently at school 470 (53) 255 (55) 215 (50) 0.15 126 (47) 89 (56) 0.084
Completed university education 471 (53) 242 (53) 229 (53) 0.64 150 (56) 79 (49) 0.073
Income from work (not sex work; full-time or part-time) 612 (71) 307 (69) 305 (72) 0.53 197 (75) 108 (68) 0.29
Sufficient income to meet basic needs most or all of month 781 (89) 404 (89) 377 (89) 0.86 242 (91) 135 (86) 0.12
Currently in a relationship 334 (38) 174 (38) 160 (37) 0.58 88 (33) 72 (45) 0.012
Gender identity 0.12 0.90
 Man, gay, or bisexual 788 (89) 418 (92) 370 (87) 231 (87) 139 (87)
 Woman or transgender woman 78 (9) 30 (7) 48 (11) 30 (11) 18 (11)
 Other or don’t know 15 (2) 8 (2) 7 (2) 5 (2) 2 (1)
Study Site <0.001 0.90
 Silom Community Clinic (SCC) 503 (57) 232 (50) 271 (63) 166 (61) 105 (66)
 Service Workers in Group Bangkok (SWING BKK) 146 (16) 106 (23) 40 (9) 21 (8) 19 (12)
 Rainbow Sky Association of Thailand (RSAT) 211 (24) 111 (24) 100 (23) 69 (26) 31 (19)
 Service Workers in Group Pattaya (SWING Pattaya) 30 (3) 11 (2) 19 (4) 14 (5) 5 (3)
Learned about study through social media* 297 (33) 155 (34) 142 (33) 0.69 79 (29) 63 (39) 0.031
Learned about study through outreach, poster, or flyer* 216 (24) 110 (24) 106 (25) 0.12 65 (24) 41 (26) 0.66
Learned about study through friend or person at venue* 406 (46) 195 (42) 211 (49) 0.28 139 (51) 72 (45) 0.25

Note: MSM = men who have sex with men; TGW = transgender women. Primary question for sex work: “In the last 30 days, have you sold or traded sex?” Secondary questions for sex work: “In the last 30 days, what were your sources of income?”; “Is transactional sex your primary source of income?”; “In the last 30 days, if you have sold or exchanged sex, where did you meet your partner(s)?”; “In the last 7 days, with how many partners did you have anal sex in exchange for money, drugs or anything else of value?”

*

Multiple response selections allowed for this question