Table 2.
Predictors of Time to New N gonorrhoeae or C trachomatis Diagnoses (Hazard Ratios from Cox Proportional Hazards models)
| Incidence per 100PY | Unadjusted Models (n=1350) | Adjusted Modela (n=1350) | |||
|---|---|---|---|---|---|
| HR (95% CI) | P | aHR (95% CI) | P | ||
| IUD Use | |||||
| Yes | 10.0 | 1.27 (0.75–2.17) | 0.38 | 1.31 (0.74–1.71) | 0.59 |
| No | 8.0 | REF | - | REF | - |
| Age Group | |||||
| Teen (age 18–19) | 10.0 | 1.34 (0.83–2.18) | 0.23 | 1.28 (0.72–2.27) | 0.40 |
| Young adult (age 20–25) | 7.7 | REF | - | REF | - |
| History of GC/CT | |||||
| Yes | 11.5 | 1.51 (0.96–2.39) | 0.08 | 1.23 (0.75–2.00) | 0.40 |
| No | 7.8 | REF | - | REF | - |
| Multiple partners, past 3m | |||||
| Yes | 13.5 | 1.92 (1.32–2.79) | <0.01 | 2.00 (1.34–2.98) | <0.01 |
| No | 6.9 | REF | - | REF | - |
| Study arm | |||||
| Intervention | 8.6 | 1.09 (0.71–1.68) | 0.69 | 1.12 (0.74–1.71) | 0.59 |
| Control | 7.8 | REF | - | REF | - |
a
Covariates included: race/ethnicity, insurance status, parity, practice setting; HR=Hazard Ratio; CI=Confidence Intervals; GC/CT: N gonorrhoeae or C trachomatis.