Table 2.
Differences in who used substances with sex within and outside the relationship, by male couples’ HIV serostatus
| Concordantly negative | Concordantly positive | Discordant | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| Substance use with sex within relationship | Neither partner | Only by one partner | By both partners | Neither partner | Only by one partner | By both partners | Neither partner | Only by one partner | By both partners | |
|
| ||||||||||
| Sample size | N=275 dyads | N=28 dyads | N=58 dyads | |||||||
|
| ||||||||||
| % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | ||
|
|
||||||||||
| Alcohol** | 91.3 (251) | 2.9 (8) | 5.8 (16) | 64.3 (18) | 25.0 (7) | 10.7 (3) | 81.0 (47) | 15.5 (9) | 3.5 (2) | |
| Marijuana*** | 69.8 (192) | 14.5 (40) | 15.6 (43) | 35.7 (10) | 0 (0) | 64.3 (18) | 69.0 (40) | 19.0 (11) | 12.0 (7) | |
| Amyl nitrates*** | 86.9 (239) | 4.4 (12) | 8.7 (24) | 46.4 (13) | 17.9 (5) | 35.7 (10) | 82.8 (48) | 6.9 (4) | 10.3 (6) | |
| EDM*** | 84.0 (231) | 9.1 (25) | 6.9 (19) | 53.6 (15) | 17.9 (5) | 28.6 (8) | 70.7 (41) | 19.0 (11) | 10.3 (6) | |
| Party drugsa*** | 91.3 (251) | 2.9 (8) | 5.8 (16) | 64.3 (18) | 25.0 (7) | 10.7 (3) | 81.0 (47) | 15.5 (9) | 3.5 (2) | |
|
| ||||||||||
| Substance use with sex outside relationshipb | Neither partner | Only by one partner | By both partners | Neither partner | Only by one partner | By both partners | Neither partner | Only by one partner | By both partners | |
|
| ||||||||||
| Sample size | N=83 dyads | N=12 dyads | N=18 dyads | |||||||
|
| ||||||||||
| % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | % (N) | ||
|
|
||||||||||
| Alcohol | 41.0 (34) | 32.5 (27) | 26.5 (22) | 25.0 (3) | 50.0 (6) | 25.0 (3) | 50.0 (9) | 38.9 (7) | 11.1 (2) | |
| Marijuana** | 70.0 (58) | 20.5 (17) | 9.5 (8) | 41.7 (5) | 41.7 (5) | 16.6 (2) | 83.3 (15) | 16.7 (3) | 0 (0) | |
| Amyl nitrates | 67.5 (56) | 18.1 (15) | 14.4 (12) | 50.0 (6) | 41.7 (5) | 8.3 (1) | 72.2 (13) | 16.7 (3) | 11.1 (2) | |
| EDM* | 73.5 (61) | 22.9 (19) | 3.6 (3) | 50.0 (6) | 33.4 (4) | 16.6 (2) | 55.6 (10) | 38.9 (7) | 5.5 (1) | |
| Party drugs a | 89.2 (74) | 6.0 (5) | 4.8 (4) | 91.7 (11) | 0 (0) | 8.3 (1) | 88.9 (16) | 11.1 (2) | 0 (0) | |
Notes.
a
Represents ecstasy, ketamine, GHB, cocaine and crystal methamphetamine
b
Only includes couples with one or both partners who self-reported having had sex with a casual MSM partner outside of the relationship.
*
P < .05,
**
P < .01,
***
P < .001