Sensitivity and specificity of radiographs of the sacroiliac joints by rheumatologists and radiologists in comparison with a “gold standard”. Results shown as percentages (SD)
| Rheumatologists | Radiologists | |||||
|---|---|---|---|---|---|---|
| Mean (SD) | Median | Range | Mean (SD) | Median | Range | |
| *Statistically significant decrease compared with baseline scores (p=0.001); †statistically significant increase compared with scores after self education (p=0.002); ‡statistically significant improvement compared with baseline scores (p=0.008) (all paired t test). | ||||||
| Differences between rheumatologists and radiologists were not statistically significant at any time. | ||||||
| Sensitivity at baseline | 80 (18) | 81 | 31–100 | 84 (22) | 88 | 25–100 |
| Sensitivity after self education | 74 (19)* | 75 | 25–100 | 80 (19) | 78 | 44–100 |
| Sensitivity after workshop | 79 (17)† | 81 | 25–100 | 83 (17) | 84 | 50–100 |
| Specificity at baseline | 75 (15) | 75 | 38–100 | 71 (16) | 71 | 46–100 |
| Specificity after self education | 78 (14)‡ | 79 | 29–100 | 70 (18) | 73 | 38–96 |
| Specificity after workshop | 76 (13) | 79 | 38–96 | 80 (16) | 85 | 50–96 |