Table 3 Individual ratings and Kappa statistic for the agreement of necrosis (yes/no) for primary clinical, secondary clinical and photographic 1 and 2 raters
Primary clinical | Secondary clinical | Kappa [95% CI] | Kappa interpretation | |
No | Yes | |||
No | 49 | 2 | Almost perfect agreement | |
Yes | 4 | 26 | 0.84 [0.62 to 1.00] | |
Primary clinical | Photographic 1 | |||
No | Yes | |||
No | 16 | 3 | Substantial agreement | |
Yes | 3 | 13 | 0.65 [0.32 to 0.99] | |
Primary clinical | Photographic 2 | |||
No | Yes | |||
No | 17 | 2 | Moderate agreement | |
Yes | 5 | 11 | 0.59 [0.26 to 0.92] | |
Photographic 1 | Photographic 2 | |||
No | Yes | |||
No | 30 | 1 | Substantial agreement | |
Yes | 8 | 21 | 0.70 [0.45 to 0.94] | |