Table 2. HRs for recurrence, estimated in Cox proportional hazards model.
| Variable | Simple Cox model | Multiple Cox model | |||
|---|---|---|---|---|---|
| HR (95% CI) | p-value | HR (95% CI) | p-value | ||
| Sex | Male | Reference | - | - | - |
| Female | 1.606 (0.672~3.836) | 0.261 | - | - | |
| Age | 0.994 (0.974~1.014) | 0.543 | - | - | |
| Treatment | MC only | Reference | - | Reference | - |
| MC+PDL | 0.450 (0.239~0.850) | 0.011* | 0.492 (0.257~0.941) | 0.032* | |
| Duration of oral MC (wk) | ≤4 | Reference | - | Reference | - |
| >4 | 0.410 (0.192~0.879) | 0.034* | 0.490 (0.226~1.063) | 0.071 | |
HR: hazard ratio, 95% CI: 95% confidence interval, MC: minocycline, PDL: pulsed dye laser. *p<0.05.