Chest radiograph panel performance compared with expert reference interpretations
| N=1652* | Expert | |||
| PEP | No PEP | Total | ||
| Panel | PEP | 232 | 49 | 281 |
| No PEP | 68 | 1303 | 1371 | |
| Total | 300 | 1352 | 1652 | |
| Sensitivity | 232/300 (77.3%) | |||
| Specificity | 1303/1352 (96.3%) | |||
| Positive predictive value | 232/281 (82.5%) | |||
| Negative predictive value | 1303/1371 (95.0%) | |||
| Per cent agreement, % (n/N) | 92.9% (1535/1652) | |||
| Unadjusted kappa | 0.75 | |||
| Adjusted kappa† | 0.85 | |||
*Twenty-one uninterpretable chest radiographs excluded.
†Prevalence-adjusted, bias-adjusted kappa statistic.
PEP, primary endpoint pneumonia.