Predictor | Non-progressors (n = 83) | Progressors to IA (n = 68) | Univariable OR (95% CI) P-value | Multivariable OR (95% CI) P-value |
---|---|---|---|---|
Mean age (SD; range) | 50 (15.65; 18–77) | 54 (14.39; 23–83) | 1.01 (0.99–1.03) P = 0.136 | 0.95 (0.95–1.02) P = 0.504 |
Female (%) | 66 | 56 | 0.64 (0.33–1.24) P = 0.193 | 0.56 (0.21–1.45) P = 0.234 |
CCP high level (%) | 45 | 90 | 10.83 (4.43–26.48) P < 0.001 | 9.42 (3.13–28.30) P < 0.001 |
Family with RA (%) | 58 | 47 | 0.64 (0.34–1.23) P = 0.188 | 0.56 (0.24–1.34) P = 0.198 |
Ever smoked (%) | 55 | 72 | 2.07 (1.04–4.11) P = 0.037 | 2.37 (0.96–5.83) P = 0.060 |
Neck (%) | 30 | 22 | 0.65 (0.72–3.19) P = 0.266 | 0.39 (0.13–1.13) P = 0.086 |
Shoulders (%) | 47 | 56 | 1.18 (0.13–1.37) P = 0.277 | 0.90 (0.35–2.36) P = 0.844 |
Elbows (%) | 28 | 27 | 0.93 (0.45–1.93) P = 0.865 | 0.93 (0.33–2.62) P = 0.894 |
Wrists (%) | 43 | 66 | 2.55 (1.31–4.96) P = 0.006 | 1.28 (0.49–3.36) P = 0.607 |
Hands (%) | 47 | 81 | 4.77 (2.27–10.02) P < 0.001 | 2.74 (1.03–7.27) P = 0.043 |
Thumbs (%) | 29 | 40 | 1.61 (0.82–3.19) P = 0.164 | 1.34 (0.44–4.06) P = 0.599 |
Back (%) | 23 | 13 | 0.51 (0.21–1.22) P = 0.133 | 0.68 (0.20–2.25) P = 0.532 |
Hips (%) | 31 | 29 | 0.91 (0.45–1.83) P = 0.799 | 1.33 (0.51–3.46) P = 0.557 |
Knees (%) | 46 | 56 | 1.50 (0.78–2.85) P = 0.218 | 1.08 (0.44–2.69) P = 0.855 |
Ankles (%) | 30 | 32 | 1.11 (0.55–2.21) P = 0.768 | 0.80 (0.27–2.41) P = 0.701 |
Feet (%) | 29 | 62 | 3.97 (2.00–7.85) P < 0.001 | 4.10 (1.59–10.54) P = 0.003 |