Questions | Kappa Coefficient (95% CI) | Percentage of Agreement |
---|---|---|
IBD type | 0.84 (0.66–1.00) | 91 |
Biologic agents for IBD | 1.00 | 100 |
Any type of biologic agent | 1.00 | 100 |
Improvement of back pain or stiffness after taking biologic agents | 1.00 | 100 |
Age of onset of back pain ≤ 45 yrs | 1.00 | 100 |
Time to develop | 1.00 | 100 |
Presence of morning stiffness | 1.00 | 100 |
Morning stiffness lasting ≥ 30 min | 1.00 | 100 |
Current back pain awakening at night | 0.94 (0.82–1.00) | 97 |
Current back pain awakening at night improves upon getting up, walking, or stretching | 0.95 (0.86–1.00) | 97 |
Locations of back pain | ||
Neck | 0.91 (0.75–1.00) | 97 |
Upper back | 1.00 | 100 |
Middle back | 0.93 (0.78–1.00) | 97 |
Lower back | 1.00 | 100 |
Buttock | 0.85 (0.65–1.00) | 94 |
Improvement with physical activity | 1.00 | 100 |
No improvement with rest | 0.88 (0.71–1.00) | 94 |
Improvement with NSAID | 1.00 | 100 |
Family history of AS | 1.00 | 100 |
Iritis/uveitis | 1.00 | 100 |
Psoriasis | 1.00 | 100 |
Psoriatic arthritis | 1.00 | 100 |
Peripheral arthritis | 0.92 (0.77–1.00) | 97 |
Dactylitis | 0.81 (0.60–1.00) | 91 |
Heel pain | 1.00 | 100 |
IBD: inflammatory bowel disease; NSAID: nonsteroidal antiinflammatory drugs; AS: ankylosing spondylitis.