Volume 24, Number 12—December 2018
CME ACTIVITY - Research
Substance Use and Adherence to HIV Preexposure Prophylaxis for Men Who Have Sex with Men1
Table 3
Associations of substance/alcohol use at baseline with study completion and incident STI among MSM and transgender women, California, USA*
Substance use baseline, n = 394 |
Study completion |
p value |
Incident STI |
p value |
||
---|---|---|---|---|---|---|
No |
Yes |
No |
Yes |
|||
DAST10 problems | 0.59 | 0.043 | ||||
No/low | 42 (17) | 207 (83) | 161 (65) | 88 (35) | ||
Moderate | 25 (21) | 95 (79) | 63 (53) | 57 (48) | ||
Substantial/severe | 5 (20) | 20 (80) | 18 (72) | 7 (28) | ||
Methamphetamine | 0.15 | 0.037 | ||||
No | 56 (17) | 275 (83) | 211 (64) | 120 (36) | ||
Some | 12 (30) | 28 (70) | 17 (43) | 23 (57) | ||
Frequent | 4 (17) | 19 (83) | 14 (61) | 9 (39) | ||
Heroin | 0.24 | 0.80 | ||||
No | 67 (18) | 310 (82) | 230 (61) | 115 (39) | ||
Some | 2 (22) | 7 (78) | 6 (67) | 1 (33) | ||
Frequent | 3 (38) | 5 (63) | 6 (75) | 2 (25) | ||
Poppers | 0.25 | <0.001 | ||||
No | 41 (21) | 150 (79) | 142 (74) | 49 (26) | ||
Some | 19 (17) | 94 (83) | 57 (50) | 56 (50) | ||
Frequent | 12 (13) | 78 (87) | 43 (48) | 47 (52) | ||
Cocaine | 0.31 | 0.18 | ||||
No | 58 (17) | 276 (83) | 211 (63) | 123 (37) | ||
Some | 9 (20) | 35 (80) | 24 (55) | 20 (45) | ||
Frequent | 5 (31) | 11 (69) | 7 (44) | 9 (56) | ||
Stimulant substances† | 0.40 | <0.001 | ||||
No | 30 (22) | 109 (78) | 110 (79) | 29 (21) | ||
Some | 23 (18) | 106 (82) | 67 (52) | 62 (48) | ||
Frequent | 19 (15) | 107 (85) | 65 (52) | 61 (48) | ||
Nonstimulant substances‡ | 0.95 | 0.33 | ||||
No | 42 (19) | 179 (81) | 140 (63) | 81 (37) | ||
Some | 19 (18) | 89 (82) | 60 (56) | 48 (44) | ||
Frequent | 11 (17) | 54 (83) | 42 (65) | 23 (35) | ||
Any substance | 0.18 | <0.001 | ||||
No | 25 (24) | 81 (76) | 81 (76) | 25 (24) | ||
Some | 25 (19) | 110 (81) | 76 (56) | 59 (44) | ||
Frequent | 22 (14) | 131 (86) | 85 (56) | 68 (44) | ||
Alcohol | 0.13 | 0.28 | ||||
No | 16 (24) | 51 (76) | 47 (70) | 20 (30) | ||
Some | 21 (22) | 74 (78) | 57 (60) | 38 (40) | ||
Frequent | 35 (15) | 197 (85) | 138 (59) | 94 (41) | ||
*Values are no. (%). DAST, Drug Abuse Screening Test; DBS, dried blood spot; MSM, men who have sex with men; STI, sexually transmitted infection.
†Includes poppers, methamphetamine, cocaine, ecstasy, amphetamine, and other stimulants.
‡Marijuana and alcohol excluded.
1Original data from this study were presented in part at the 2017 Conference on Retroviruses and Opportunistic Infections, February 13–16, 2017, Seattle, Washington, USA; and at the 12th International Conference on HIV Treatment and Prevention Adherence, June 4–6, 2017, Miami, Florida, USA.