Table III.
Multivariate analysis: risk factors for recurrence
| Characteristics | Incidence rate ratio 95% CI | p-value |
|---|---|---|
| BCC | ||
| Age, in years | 1.02 (1–1.03) | 0.0099 |
| Type | ||
| Primary | Reference | |
| Recurrent | 1.78 (1.20–2.63) | 0.0040 |
| Persistent | 1.89 (1.25–2.86) | 0.0025 |
| Number of stages | ||
| 1 | Reference | |
| 2 | 1.62 (1.11–2.35) | 0.0116 |
| 3 or more | 1.93 (1.17–3.17) | 0.0098 |
| Unfinished surgery | 4.49 (2.33–8.66) | 0.0000 |
| Pathologist participates in the interpretation | 2.42 (1.01–5.78) | 0.0469 |
| Technique | ||
| Healing by secondary intention | Reference | |
| Direct closure | 1.65 (0.89–3.05) | 0.1096 |
| Flap | 0.97 (0.53–1.78) | 0.9319 |
| Graft | 1.76 (0.93–3.32) | 0.0822 |
| Complete closure | 0.72 (0.25–2.03) | 0.5303 |
| SCC | ||
| Immunosuppression | 2.87 (1.28–6.45) | 0.0106 |
| Number of stages | ||
| 1 | Reference | |
| 2 | 3.83 (1.69–8.71) | 0.0014 |
| 3 or more | 4.15 (1.41–12.26) | 0.0100 |
| Unfinished surgery | 6.71 (2.74–16.42) | 0.0000 |
| Defect diff. (mm) | 1.03 (1.01–1.05) | 0.0060 |
95% CI: 95% confidence interval; BCC: basal cell carcinoma; SCC: squamous cell carcinoma; NA: non-applicable: Defect diff.: difference between major and minor axis, mm: a marker of asymmetrical growth. Bold p-values indicate statistically significant results.