Table 2.
Results of Logistic Regression Models to Generate Weights for Circumcision and Censoringa
| Variables | Circumcision, OR (95% CI) | Censoring, OR (95% CI) |
|---|---|---|
| Baseline covariates | ||
| Age 21–24 y (vs 18–20 y) | 1.08 (.90–1.28) | 1.04 (.91–1.19) |
| Highest completed educational attainment | ||
| None, primary 1–8 | Ref | Ref |
| Some secondary | 1.08 (.84–1.38) | 0.96 (.91–1.19) |
| Secondary or higher | 1.12 (.91–1.39) | 1.08 (.92–1.26) |
| Married or cohabiting (vs not married and not cohabiting) | 2.30 (1.53–3.46) | 1.40 (1.01–1.94) |
| Resides in Kisumu district (vs other district) | 1.01 (.73–1.39) | 0.79 (.61–1.04) |
| Income source | ||
| None | Ref | Ref |
| Self-employed | 0.90 (.65–1.24) | 1.01 (.81–1.27) |
| Salaried | 0.98 (.76–1.28) | 0.94 (.76–1.18) |
| Condom used at last intercourse (yes vs no) | 1.99 (1.66–2.37) | 0.96 (.84–1.09) |
| No. of sex partners in past 6 mo | ||
| 0 | Ref | Ref |
| 1 | 0.78 (.60–1.02) | 0.90 (.74–1.08) |
| ≥2 | 0.71 (.60–1.02) | 0.83 (.68–1.01) |
| Endorsement of circumcision | 1.03 (.97–1.09) | 1.05 (1.01–1.10) |
| Self-reported or clinically detected GUD | 0.11 (.01–.83) | 1.34 (.84–2.14) |
| Urethral discharge detected on exam or by self-report | 2.00 (1.30–3.06) | 0.77 (.53–1.12) |
| Self-reported scratches, cuts, abrasions, bleeding of skin of penis after sexual intercourse, occurring in the past 6 mo | .96 (.81–1.14) | 1.04 (.92–1.19) |
| Time-varying covariates | ||
| Circumcised | 0.94 (.82–1.08) | |
| Married or cohabiting (vs not married and not cohabiting) | 0.91 (.73–1.14) | 0.76 (.64–.90) |
| Resides in Kisumu district (vs other district) | 1.01 (.73–1.40) | 0.88 (.68–1.15) |
| Income source | ||
| None | Ref | Ref |
| Self-employed | 0.83 (.68–1.03) | 0.70 (.60–.82) |
| Salaried | 0.99 (.76–1.28) | 0.81 (.68–.97) |
| Condom used at last intercourse (yes vs no) | 0.77 (.63–.94) | 0.93 (.81–1.08) |
| No. of sex partners in past 6 mo | ||
| 0 | Ref | Ref |
| 1 | 1.02 (.78–1.34) | 0.93 (.76–1.12) |
| ≥2 | 1.20 (.90–3.08) | 0.90 (.73–1.11) |
| Endorsement of circumcision | 1.43 (1.35–1.51) | 0.91 (.88–.95) |
| Self-reported or clinically detected GUD | 0.30 (.10–.90) | 0.81 (.41–1.60) |
| Urethral discharge detected on exam or by self-report | 1.62 (.86–3.08) | 1.03 (.62–1.70) |
| Self-reported scratches, cuts, abrasions, bleeding of skin of penis after sexual intercourse, occurring in the past 6 mo | 0.59 (.47–.75) | 1.10 (.93–1.30) |
Abbreviations: CI, confidence interval; GUD, genital ulcer disease; HSV-2, herpes simplex virus 2; OR, odds ratio.
a Models presented are the denominators for the stabilized weights: pooled logistic regression models for circumcision and for censoring.