Table 3.
Hazard ratios (and 95% confidence intervals) for the association of perceived stress and incident STI (n=2,439).
| Model 1: Unadjusted Total Stress Association | Model 2: Adjusted Total Stress Association | Model 3: Adjusted Direct Stress Association | |
|---|---|---|---|
| Perceived Stress Scale, past 3 months | |||
| Continuous (0 to 40) | 1.019 (1.009, 1.029) | 1.015 (1.005, 1.026) | 1.003 (0.990, 1.016) |
| Education | |||
| > high school degree | 1.00 | 1.00 | |
| ≦High school degree | 1.456 (1.195, 1.773) | 1.460 (1.153, 1.848) | |
| Monthly Income | |||
| < $500 | 1.00 | 1.00 | |
| $500 to $800 | 1.021 (0.844, 1.235) | 0.920 (0.724, 1.169) | |
| $800 to $3000 | 0.795 (0.635, 0.968) | 0.730 (0.572, 0.931) | |
| > $3000 | 0.637 (0.435, 0.934) | 0.778 (0.507, 1.195) | |
| Race* | |||
| Black | 1.00 | 1.00 | |
| White | 0.354 (0.266, 0.473) | 0.416 (0.295, 0.585) | |
| Age (years) | 0.990 (0.979, 1.002) | 0.997 (0.982, 1.012) | |
| Marital status | |||
| Not Married | 1.00 | 1.00 | |
| Married | 0.745 (0.576, 0.964) | 0.795 (0.584, 1.073) | |
| Nugent Score | |||
| Low (0 to 3) | 1.00 | ||
| Intermediate (4 to 6) | 1.595 (1.230, 2.068) | ||
| High (7 to 10) | 1.612 (1.280, 2.029) | ||
| Condom Use, past 3 months | |||
| Always | 1.00 | ||
| Most of the time | 0.996 (0.712, 1.393) | ||
| Half the time | 1.443 (0.969, 2.148) | ||
| Seldom | 1.138 (0.747, 1.735) | ||
| Never | 0.949 (0.748, 1.202) | ||
| Number of Sex Partners, past 3 months | |||
| 0–1 | 1.00 | ||
| ≥2 | 1.295 (0.900, 1.865) | ||
| Partner Concurrence | |||
| No concurrence | 1.00 | ||
| Unlikely concurrence | 1.490 (1.186, 1.872) | ||
| Possibly concurrent | 1.709 (1.176, 2.483) | ||
| Definitely concurrent | 1.911 (1.325, 2.756) |
*
Terms for other racial groups not reported due to insufficient sample size in each group (n<20).
Note: Bold indicates statistically significant hazard ratio at P<.05.