Table 5.
Mean change in indicators before and after intervention in the 2 groups (N=96).
| Items | Intervention group (n=50) | Control group (n=46) |
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Before intervention, mean (SD) | After intervention, mean (SD) | Before intervention, mean (SD) | After intervention, mean (SD) | Baseline differencea P value | Difference-in-difference,b mean (SD) | P value | ||||
| AIDS knowledge awareness rate | ||||||||||||
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Overall | 58.04 (17.55) | 70.09 (11.58) | 57.87 (11.80) | 57.49 (16.58) | 0.96 | 12.40 (4.23) | 0.004 | ||||
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Basic knowledge of AIDS | 64.77 (17.10) | 74.62 (13.84) | 65.55 (15.19) | 64.38 (17.04) | 0.81 | 11.02 (4.58) | 0.02 | ||||
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Knowledge of AIDS prevention | 55.20 (25.97) | 66.20 (18.83) | 51.74 (16.37) | 52.61 (22.15) | 0.43 | 10.13 (6.13) | 0.100 | ||||
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Knowledge of AIDS testing | 48.80 (24.96) | 62.00 (25.64) | 47.83 (22.50) | 42.61 (25.86) | 0.85 | 18.42 (7.16) | 0.01 | ||||
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Knowledge of AIDS treatment | 68.00 (31.15) | 83.00 (21.09) | 65.76 (27.06) | 72.28 (30.84) | 0.69 | 8.48 (8.03) | 0.29 | ||||
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Knowledge of AIDS PrEPc | 35.20 (18.76) | 44.40 (17.75) | 32.17 (19.54) | 26.52 (20.25) | 0.44 | 17.88 (3.89) | <0.001 | ||||
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Knowledge of AIDS-related laws and regulations | 65.75 (27.87) | 82.25 (15.79) | 71.47 (21.03) | 73.64 (20.79) | 0.20 | 14.33 (6.31) | 0.02 | ||||
| Stigma score | ||||||||||||
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Overall | 2.58 (0.61) | 2.44 (0.57) | 2.51 (0.49) | 2.48 (0.47) | 0.50 | –0.11 (0.16) | 0.48 | ||||
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Fear of transmission and disease | 2.93 (1.13) | 2.59 (0.86) | 2.97 (0.96) | 2.85 (0.95) | 0.84 | –0.34 (0.29) | 0.23 | ||||
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Association with shame, blame, and judgment | 2.47 (0.82) | 2.55 (0.83) | 2.31 (0.70) | 2.34 (0.51) | 0.29 | 0.05 (0.21) | 0.81 | ||||
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Personal support of discriminatory actions or policies | 2.72 (0.74) | 2.45 (0.67) | 2.58 (0.68) | 2.54 (0.61) | 0.33 | –0.23 (0.20) | 0.25 | ||||
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Perceived community support of discriminatory actions or policies | 2.20 (0.82) | 2.15 (0.73) | 2.16 (0.65) | 2.17 (0.63) | 0.78 | –0.05 (0.21) | 0.79 | ||||
| Positive rate of attitude of high-risk AIDS behaviors | ||||||||||||
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Overall | 77.50 (22.73) | 82.00 (23.44) | 85.05 (19.30) | 79.62 (17.94) | 0.08 | 9.93 (6.09) | 0.10 | ||||
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Do you support premarital sex? | 72.00 (45.40) | 84.00 (37.00) | 80.00 (40.10) | 76.00 (43.10) | 0.32 | 16.33 (11.99) | 0.18 | ||||
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Do you support premature love? | 52.00 (50.50) | 64.00 (48.50) | 57.00 (50.10) | 59.00 (49.80) | 0.66 | 9.83 (14.36) | 0.49 | ||||
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Do you support a 1-night stand? | 88.00 (32.80) | 92.00 (27.40) | 96.00 (20.60) | 98.00 (14.70) | 0.14 | 1.83 (7.25) | 0.80 | ||||
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Will you have premarital sex with your boyfriend/girlfriend? | 74.00 (44.30) | 82.00 (38.80) | 80.00 (40.10) | 74.00 (44.40) | 0.45 | 14.52 (12.13) | 0.23 | ||||
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Will you have sex with someone other than your lover? | 82.00 (38.80) | 86.00 (35.10) | 87.00 (34.10) | 89.00 (31.50) | 0.49 | 1.83 (10.13) | 0.86 | ||||
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Will you have sex with the same gender? | 88.00 (32.80) | 94.00 (24.00) | 89.00 (31.50) | 98.00 (14.70) | 0.38 | –14.70 (7.75) | 0.06 | ||||
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Will you use condoms when you have sex with your lover? | 80.00 (40.40) | 84.00 (37.00) | 93.00 (25.00) | 70.00 (46.50) | 0.23 | 19.91 (11.00) | 0.07 | ||||
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Will you use condoms when you have sex with other people of the same/opposite sex? | 74.00 (44.30) | 80.00 (40.00) | 80.00 (40.00) | 74.00 (44.40) | 0.46 | 12.52 (12.24) | 0.31 | ||||
aP value for the mean difference between intervention and control groups before the intervention (baseline differences).
bDifference-in-difference. It shows whether the expected mean change in indicators from before to after the intervention was different between control and intervention groups.
cPrEP: pre-exposure prophylaxis.