Table 1. Unconditional logistic regression: risk factors for PsA
| Term | OR | 95% CI | p value |
|---|---|---|---|
| Current age | 0.97 | 0.94–1.00 | 0.054 |
| Age at psoriasis onset | 0.99 | 0.97–1.01 | 0.51 |
| IBP (present vs absent) | 1.20 | 0.54–2.64 | 0.64 |
| Nail psoriasis (present vs absent) | 0.86 | 0.49–1.49 | 0.60 |
| PASI score (10 or more vs <10) | 1.91 | 0.91–3.99 | 0.08 |
| Sex (male vs female) | 2.31 | 1.34–3.97 | 0.002 |
OR = odds ratio; CI = confidence intervals; IBP = inflammatory back pain; PASI = psoriasis area and severity index.