Covariate | Univariate Analysis | Multivariate Analysis | ||||
---|---|---|---|---|---|---|
Full Model | Reduced Model | |||||
OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P | |
Age, yrs | 0.99 (0.96–1.03) | 0.63 | 0.99 (0.96–1.02) | 0.54 | ||
PsA duration, yrs | 1.45 (0.42–5.00) | 0.56 | 1.50 (0.48–4.66) | 0.48 | ||
Sex (M vs F) | 0.55 (0.22–1.35) | 0.19 | 0.73 (0.32–1.69) | 0.46 | ||
LE SJ | 13.66 (7.13–26.17) | < 0.001 | 20.12 (6.97–58.08) | < 0.001 | 16.15 (6.79–38.43) | < 0.001 |
UE SJ | 8.84 (4.47–17.51) | < 0.001 | 18.55 (6.45–53.33) | < 0.001 | 16.29 (6.15–43.17) | < 0.001 |
LE LJ | 4.14 (2.27–7.56) | < 0.001 | 3.58 (1.25–10.23) | 0.02 | 3.39 (1.34–8.62) | 0.01 |
UE LJ | 4.42 (2.44–8.01) | < 0.001 | 5.37 (1.99–14.44) | < 0.001 | 3.93 (1.62–9.53) | 0.002 |
Dactylitis | 2.36 (1.22–4.58) | 0.01 | 1.39 (0.44–4.41) | 0.58 | ||
Enthesitis | 2.70 (1.44–5.07) | 0.002 | 1.45 (0.52–4.06) | 0.48 | ||
Axial disease | 1.58 (0.75–3.33) | 0.23 | 1.07 (0.31–3.69) | 0.92 | ||
PASI | 1.03 (0.99–1.07) | 0.10 | 1.05 (0.99–1.10) | 0.09 | ||
HAQ | 2.60 (1.48–4.57) | < 0.001 | 0.52 (0.13–2.15) | 0.37 | ||
SF-36 PCS | 0.95 (0.93–0.98) | < 0.001 | 0.94 (0.88–1.00) | 0.04 | 0.96 (0.92–1.00) | 0.03 |
SF-36 MCS | 0.99 (0.96–1.01) | 0.31 | 1.01 (0.97–1.06) | 0.56 | ||
Elevated APR | 1.53 (0.90–2.64) | 0.12 | 0.64 (0.26–1.57) | 0.33 | ||
Highest medication | ||||||
NSAIDs | 0.51 (0.28–0.96) | 0.04 | 0.38 (0.14–1.04) | 0.06 | ||
DMARDs | 0.81 (0.38–1.72) | 0.58 | 0.56 (0.14–2.30) | 0.42 | ||
Biologics | 0.74 (0.23–2.44) | 0.63 | 1.28 (0.19–8.80) | 0.80 |
↵aBased on 228 patients with complete covariate information at baseline clinic visit (126 with polyarthritis, 102 with oligoarthritis). APR: acute-phase reactant; DMARD: disease-modifying antirheumatic drug; HAQ-DI: Health Assessment Questionnaire-Disability Index; LE: lower extremity; LJ: large joint; MCS: mental component summary score; NSAID: nonsteroidal antiinflammatory drugs; PASI: Psoriasis Area Severity Index; PCS: physical component summary score; PsA: psoriatic arthritis; SF-36: 36-item Short Form Health Survey; SJ: small joint; UE: upper extremity.