Interobserver and intraobserver reliability of measurement of damage in vasculitis for each organ system
| Interobserver reliability, κ (95% CI) | Intraobserver reliability, κ (95% CI) | |||
|---|---|---|---|---|
| Organ system | VDI (n=28 paired observations) | CDA (n=28 paired observations) | VDI (n=14 paired observations) | CDA (n=15 paired observations) |
| Musculoskeletal | 0.65 (0.02 to 1.00) | 0.65 (0.02 to 1.00) | – | – |
| Skin/mucous membrane | 0.78 (0.59 to 1.00) | 0.59 (0.32 to 0.83) | 1.00 (1.00 to 1.00) | 0.41 (0.00 to 0.65) |
| Ocular | 1.00 | 1.00 | 1.00 (1.00 to 1.00) | 1.00 (1.00 to 1.00) |
| ENT | 0.77 (0.46 to 1.00) | 0.59 (0.23 to 0.84) | 0.79 (0.46 to 1.00) | 0.78 (0.50 to 0.96) |
| Pulmonary | 1.00 | 0.78 (0.37 to 1.00) | 1.00 (1.00 to 1.00) | 0.76 (0.32 to 1.00) |
| Cardiovascular | 0.83 (0.60 to 1.00) | 0.63 (0.42 to 0.84) | 1.00 (1.00 to 1.00) | 0.77 (−0.07 to 1.00) |
| Peripheral vascular | 1.00 | 0.31 (−0.82 to 1.00) | – | – |
| Gastrointestinal | – | – | – | – |
| Renal | 0.80 (0.19 to 1.00) | 0.70 (0.40 to 0.88) | 0.82 (0.45 to 1.00) | 0.45 (0.00 to 0.88) |
| Neuropsychiatric | 0.52 (0.11 to 0.92) | 0.46 (0.00 to 0.92) | 0.76 (0.32 to 1.00) | 0.58 (0.07 to 1.00) |
1.00, complete agreement; –, No patients had damage in this organ system; CDA, Combined Damage Assessment Index; ENT, ear, nose and throat; VDI, Vasculitis Damage Index.