Table 3.
Diagnostic accuracy and agreement with reference standard (n = 1601 raters)
| Mean (95% CI) | Median (IQR) | 2·5th–97·5th percentile | |
|---|---|---|---|
| Po a | 0·79 (0·79–0·80) | 0·83 (0·75–0·88) | 0·42–0·96 |
| Ptype 1 b | 0·86 (0·85–0·86) | 0·89 (0·80–0·94) | 0·43–1·00 |
| Ptype 2 b | 0·75 (0·74–0·75) | 0·78 (0·67–0·88) | 0·31–0·94 |
| Ptype 3 b | 0·76 (0·76–0·77) | 0·80 (0·71–0·88) | 0·32–1·00 |
| Type 1 vs. 2+3 | |||
| Sensitivity | 0·88 (0·87–0·88) | 0·88 (0·88–1·00) | 0·38–1·00 |
| Specificity | 0·92 (0·92–0·93) | 0·94 (0·88–1·00) | 0·69–1·00 |
| Type 2 vs. 1+3 | |||
| Sensitivity | 0·77 (0·76–0·77) | 0·75 (0·62–0·88) | 0·25–1·00 |
| Specificity | 0·86 (0·86–0·87) | 0·88 (0·81–0·94) | 0·56–1·00 |
| Type 3 vs. 1+2 | |||
| Sensitivity | 0·74 (0·73–0·75) | 0·75 (0·62–0·88) | 0·25–1·00 |
| Specificity | 0·91 (0·90–0·91) | 0·94 (0·88–1·00) | 0·62–1·00 |
CI, confidence interval; IQR, interquartile range; type 1, no skin/flap loss; type 2, partial skin/flap loss; type 3, total skin/flap loss. aOverall proportion of agreement; bproportion of specific agreement.