Research Article
Modeling Count Outcomes from HIV Risk Reduction Interventions: A Comparison of Competing Statistical Models for Count Responses
Table 1
Distribution of outcomes.
| Outcome | Zero (percentage) | Mean | Variance |
| All vaginal sex episodes | | | | 3 months | 16.35 | 12.00 | 183.53 | 6 months | 17.90 | 12.01 | 214.77 | 12 months | 16.28 | 15.26 | 326.26 | Unprotected vaginal sex with steady partners | | | | 3 months | 43.67 | 4.90 | 70.01 | 6 months | 42.38 | 6.00 | 108.70 | 12 months | 33.69 | 7.15 | 112.04 | Unprotected vaginal sex with other partners | | | | 3 month | 87.69 | 0.32 | 1.31 | 6 months | 89.61 | 0.27 | 1.15 | 12 months | 86.50 | 0.39 | 1.69 | Any unprotected vaginal sex with steady or other partners | | | | 3 months | 39.47 | 4.80 | 52.65 | 6 months | 39.67 | 5.60 | 72.99 | 12 months | 29.44 | 7.55 | 122.98 |
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