Background
Methods
Study variables and data management
Data analysis
Variable | Alcohol abstainers n (%) | Audit scores n (%) | Frequency of alcohol use n (%) | Pattern of alcohol use n (%) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Audit score 1-7 | Audit score 8-15 | Audit score 16-19 | Audit score 20-40 |
P
| 4 or less times per month | 2 or more times per week |
P
| Non binge drinker | Binge (≥6 alcohol units) |
P
| ||
Age ≤ 23 years | 69 (51.1) | 49 (55.1) | 55 (51.9) | 18 (38.3) | 31 (47.7) | 0.43 | 71 (46.7) | 82 (52.9) | 0.54 | 76 (56.3) | 77 (44.8) | 0.13 |
Education level
None or incomplete primary Primary or incomplete secondary Secondary or higher | 45 (33.3) 66 (48.9) 24 (17.8) | 29 (32.6) 40 (44.9) 20 (22.5) | 30 (28.3) 53 (50.0) 23 (21.7) | 13 (27.7) 28 (59.6) 6 (12.8) | 17 (26.2) 29 (44.6) 19 (29.2) | 0.51 | 41 (27.0) 81 (53.3) 30 (19.7) | 48 (31.0) 69 (44.5) 38 (24.5) | 0.42 | 44 (32.6) 63 (46.7) 28 (20.7) | 45 (26.2) 87 (50.6) 40 (23.3) | 0.57 |
Religion
Catholic Protestant Muslim Animist or none | 34 (25.2) 21 (15.6) 76 (56.3) 4 (3.0) | 17 (19.1) 17 (19.1) 49 (55.1) 6 (6.7) | 28 (26.4) 12 (11.3) 56 (52.8) 10 (9.4) | 9 (19.2) 8 (17.0) 26 (55.3) 4 (8.5) | 25 (39.1) 12 (18.8) 25 (39.1) 2 (3.1) | 0.13 | 34 (22.4) 25 (15.6) 87 (57.2) 6 (4.0) | 45 (29.2) 24 (16.5) 69 (44.8) 16 (10.4) | 0.053 | 28 (20.7) 22 (16.3) 76 (56.3) 9 (6.7) | 51 (29.8) 27 (15.8) 80 (46.8) 13 (7.6) | 0.30 |
Lives with a male or female partner
| 40 (29.6) | 27 (30.3) | 28 (26.4) | 14 (29.8) | 22 (33.9) | 0.89 | 46 (30.3) | 45 (29.0) | 0.97 | 36 (26.7) | 55 (32.0) | 0.60 |
Part-time sex work
| 76 (56.3) | 49 (55.1) | 59 (55.7) | 22 (46.8) | 30 (46.2) | 0.56 | 89 (58.6) | 71 (45.8) | 0.059 | 68 (50.4) | 92 (53.5) | 0.62 |
Years of sex work 6 or more years | 50 (38.5) | 45 (51.1) | 52 (49.5) | 32 (68.1) | 33 (51.6) |
0.011
| 76 (50.7) | 86 (55.8) |
0.012
| 63 (47.0) | 99 (58.2) |
0.003
|
Number of partners (past week
¥
)
3 or more clients 1 or more non-paying partners | 43 (31.9) 45 (33.6) | 25 (28.1) 27 (30.3) | 38 (36.2) 32 (30.2) | 15 (31.9) 13 (27.7) | 23 (35.9) 27 (41.5) | 0.77 0.49 | 36 (23.7) 45 (29.6) | 65 (42.5) 54 (34.8) |
0.002
0.60
| 42 (31.1) 35 (25.9) | 59 (34.7) 64 (37.2) | 0.78 0.11 |
Role in anal sex with last male client
Insertive only Receptive only Both insertive and receptive | 72 (53.7) 55 (41.0) 7 (5.2) | 38 (44.2) 35 (40.7) 13 (15.1) | 60 (56.6) 31 (29.3) 15 (14.2) | 24 (51.1) 20 (42.6) 3 (6.4) | 29 (44.6) 28 (43.1) 8 (12.3) | 0.11 | 75 (50.0) 57 (38.0) 18 (12.0) | 76 (49.4) 57 (37.0) 21 (13.6) | 0.20 | 62 (47.0) 48 (36.4) 22 (16.7) | 89 (51.7) 66 (38.4) 17 (9.9) | 0.052 |
Prevention knowledge: aware that
¥
HIV can be transmitted via anal sex Consistent condoms prevent HIV | 98 (72.6) 121 (89.6) | 68 (76.4) 83 (93.3) | 80 (75.5) 97 (91.5) | 32 (68.1) 38 (80.9) | 46 (70.8) 56 (86.2) | 0.85 0.26 | 116 (76.3) 138 (90.8) | 110 (71.0) 136 (87.7) | 0.73 0.84 | 101 (74.8) 128 (94.8) | 125 (72.7) 146 (84.9) | 0.86
0.026
|
Ever tested for HIV
| 83 (61.9) | 64 (71.9) | 66 (62.3) | 30 (63.8) | 40 (61.5) | 0.56 | 97 (63.8) | 103 (66.5) | 0.72 | 88 (65.2) | 112 (65.1) | 0.81 |
Substance use
¥
Khat Cocaine or heroin Rohypnol | 91 (67.4) 4 (3.0) 10 (7.4) | 64 (71.9) 7 (7.9) 7 (7.9) | 87 (82.1) 11 (10.4) 19 (17.9) | 42 (89.4) 5 (10.6) 11 (23.4) | 50 (76.9) 7 (10.8) 19 (29.2) |
0.012
0.15
< 0.001
| 112 (73.7) 11 (7.2) 22 (14.5) | 131 (84.5) 19 (12.3) 34 (21.9) |
0.003
0.012
0.002
| 98 (72.6) 12 (8.9) 18 (13.3) | 145 (84.3) 18 (10.5) 38 (22.1) |
0.002
0.041
0.001
|
Total cases (n)
| 135 | 89 | 106 | 47 | 65 | 152 | 155 | 135 | 172 |
Results
Population description and sexual behaviour
Substance use
Measures of alcohol use | n (%) |
---|---|
AUDIT scores | |
Score 0 (alcohol abstinence) Score 1-7 (low-risk drinkers) Score 8-15 (hazardous drinkers) Score 16-19 (harmful drinkers) Score 20-40 (alcohol dependence) | 135 (30.5) 89 (20.1) 106 (24.0) 47 (10.6) 65 (14.7) |
Frequency of alcohol use
| |
Alcohol abstinence 4 or less times per month 2 or more times per week | 135 (30.5 152 (49.5) 155 (50.5) |
Pattern of alcohol use ^ | |
Alcohol abstinence Non-binge drinking Monthly binge or less Binge 2 to 4 times a month Binge more than 2 times a week | 135 (30.5) 135 (30.5) 57 (12.9) 51 (11.5) 64 (14.5) |
Variable | Risk factor | n (%) | Crude odds ratio (95% CI) |
P
| Adjusted odds ratio (95% CI) |
P
|
---|---|---|---|---|---|---|
Inconsistent condom use with clients
|
Alcohol abstainers (comparison group)*
| 58 (43.0) | 1.0 | 1.0 | ||
Audit assessment
| ||||||
Audit score 1-7 (low-risk drinkers) | 45 (50.6) | 1.36 (0.79-2.33) | 1.33 (0.77-2.28) | |||
Audit score 8-15 (hazardous drinkers) | 48 (45.3) | 1.10 (0.66-1.84) | 1.06 (0.63-1.78) | |||
Audit score 16-19 (harmful drinkers) | 25 (53.2) | 1.50 (0.77-2.95) | 1.37 (0.70-2.70) | |||
Audit score 20-40 (alcohol dependence) | 44 (67.7) | 2.78 (1.47-5.28) |
0.004
| 2.46 (1.31-4.64) |
0.017^
| |
Frequency of alcohol use
| ||||||
4 or less times per month | 67 (44.1) | 1.05 (0.66-1.67) | 1.06 (0.65-1.72) | |||
2 or more times per week | 95 (61.3) | 2.10 (1.30-3.39) |
0.002
| 1.83 (1.12-2.98) |
0.013
%
| |
Pattern of alcohol use
| ||||||
Non-binge drinkers | 65 (48.2) | 1.23 (0.76-1.99) | 1.19 (0.73-1.93) | |||
Binge drinkers | 97 (56.4) | 1.72 (1.08-2.72) |
0.018
| 1.58 (0.99-2.51) | 0.051^ | |
Sexual violence
(rape or sexual assault)
|
Alcohol abstainers (comparison group)*
| 13 (9.6) | 1.0 | 1.0 | ||
Audit assessment
| ||||||
Audit score 1-7 (low-risk drinkers) | 7 (7.9) | 0.80 (0.31-2.10) | 0.74 (0.28-1.96) | |||
Audit score 8-15 (hazardous drinkers) | 11 (10.5) | 1.10 (0.47-2.57) | 0.73 (0.30-1.79) | |||
Audit score 16-19 (harmful drinkers) | 6 (12.8) | 1.37 (0.49-3.86) | 0.98 (0.33-2.85) | 0.13#
| ||
Audit score 20-40 (alcohol dependence) | 15 (23.1) | 2.82 (1.23-6.44) |
0.010
| 2.04 (0.86-4.87) | ||
Frequency of alcohol use
| ||||||
4 or less times per month | 18 (11.9) | 1.27 (0.60-2.71) | 1.02 (0.47-2.23) | |||
2 or more times per week | 21 (13.6) | 1.47 (0.70-3.07) | 0.30 | 0.99 (0.46-2.15) | 0.98#
| |
Pattern of alcohol use
| ||||||
Non-binge drinkers | 13 (9.6) | 1.00 (0.44-2.25) | 0.85 (0.37-1.93) | |||
Binge drinkers | 26 (15.2) | 1.68 (0.83-3.43) | 0.12 | 1.14 (0.54-2.41) | 0.67#
| |
Self-reported STI
(anal or penile discharge)
|
Alcohol abstainers (comparison group)*
| 29 (21.5) | 1.0 | 1.0 | ||
Audit assessment
| ||||||
Audit score 1-7 (low-risk drinkers) | 16 (18.0) | 0.80 (0.41-1.58) | 0.74 (0.37-1.48) | |||
Audit score 8-15 (hazardous drinkers) | 20 (18.9) | 0.85 (0.45-1.61) | 0.90 (0.48-1.72) | |||
Audit score 16-19 (harmful drinkers) | 15 (31.9) | 1.71 (0.81-3.61) | 1.67 (0.80-3.52) |
0.019 | | ||
Audit score 20-40 (alcohol dependence) | 23 (35.4) | 2.00 (1.03-3.88) |
0.018
| 1.94 (1.01-3.75) | ||
Frequency of alcohol use
| ||||||
4 or less times per month | 40 (26.3) | 1.31 (0.75-2.26) | 1.26 (0.72-2.18) | |||
2 or more times per week | 34 (21.9) | 1.03 (0.59-1.80) | 0.96 | 1.05 (0.60-1.84) | 0.90| | |
Pattern of alcohol use
| ||||||
Non-binge drinkers | 29 (21.5) | 1.00 (0.56-1.79) | 0.98 (0.55-1.77) | |||
Binge drinkers | 45 (26.2) | 1.30 (0.76-2.21) | 0.32 | 1.29 (0.75-2.20) | 0.33| |