Univariable and multivariable linear regression analysis of SF-36 MCS (square transformation).
| Variables | Univariable | Multivariable | ||
|---|---|---|---|---|
| β | 95% CI | β | 95% CI | |
| Age, yrs | 1.97 | −5.50 to 9.44 | 1.3 | −6.03 to 8.63 |
| Sex (male vs female) | −432 | −632 to −231 | −292 | −499 to −85 |
| Swollen joint count (66) | 5 | −25 to 35 | 27 | −6 to 61 |
| Tender joint count (68) | −40 | −59 to −22 | −38 | −59 to −16 |
| No. enthesitis locations | −93 | −134 to −52 | −38 | −83 to 7 |
| Dactylitis (no vs yes) | 118 | −197 to 433 | 104 | −195 to 402 |
| PASI | −15 | −43 to 13 | −16 | −43 to 10 |
| Chronic back pain (no vs yes) | −660 | −987 to −333 | −298 | −580 to −16 |
Analysis of complete cases (n = 317); significant coefficients in bold face. MCS square-transformed for a better distribution. SF-36 MCS: Medical Outcomes Study Short Form-36 mental component summary; PASI: Psoriasis Area and Severity Index.