From: Clinimetric properties of the Chinese version of the early inflammatory arthritis detection tool
Variable | Group | |||||
---|---|---|---|---|---|---|
odds ratio (95 % confidence interval) | ||||||
Control | Rheumatoid arthritis | Osteoarthritis | SAD | Psoriatic arthritis | Ankylosing spondylitis | |
Age (per 10 years) | 0.56 (0.35–0.92) | 1.62 (1.03–2.55) | 2.46 (1.46–4.14) | – | – | 0.67 (0.45–0.98) |
Sex (females as reference group) | – | – | – | – | – | 7.43 (2.16–25.66) |
1. Do you have pain in your joints? | 0.11 (0.02–0.58) | – | 19.47 (2.33–163.06) | – | – | – |
2. Do you have pain in your wrists and hands? | – | – | – | – | 8.34 (2.56–27.23) | 0.17 (0.04–0.66) |
3. Are your hands or wrists swollen? | – | 5.26 (1.34–20.7) | 0.10 (0.02–0.55) | – | – | – |
4. Do you have trouble making a fist? | – | – | – | – | – | – |
5. Are your joints stiff in the morning? | 0.04 (0.01–0.38) | – | – | – | – | 5.19 (1.41–19.04) |
6. From the time you wake in the morning, does it take more than 60 min for your joints to move more freely? | – | – | – | – | 11.05 (2.18–56.08) | – |
7. Are the same joints involved on both sides of your body? | – | – | – | – | – | – |
8. Have important activities in your life been affected because of bone or joint problems, such as having difficulty with personal care or having to make a change regarding leisure or work activities? | – | – | – | 0.08 (0.01–0.64) | – | – |
9. Have you ever been told that you have rheumatoid arthritis? | – | 93.45 (17.73–492.53) | – | – | 0.05 (0.01–0.32) | – |
10. Does anyone in your family have rheumatoid arthritis? | – | – | – | – | – | – |
11. Have you been diagnosed with a rash called psoriasis? | 0.10 (0.01–0.98) | – | – | – | – | – |
Nagelkerke R2 | 0.54 | 0.69 | 0.47 | 0.14 | 0.30 | 0.38 |