Table 5 Reliability of Payne-Martin and STAR grading scales for skin tears
Inter-rater agreement: nurses vs. tissue viability expert (AK) | Inter-scale agreement: Payne-Martin vs STAR | |||
|---|---|---|---|---|
Payne-Martin Groups 1a, 1b, 2a, 2b and 3 | STAR Groups 1a, 1b, 2a, 2b and 3 | Nurse grading | Tissue viability expert (AK) grading | |
Observed agreement | 75% | 74.1% | 88.33% | 90% |
Expected agreement | 66.2% | 66.8% | 61.67% | 71.39% |
Kappa +/− 95% CI | 0.26 (0.02 to 0.5) | 0.22 (− 0.02 to 0.46) | 0.70 (0.55 to 0.84) | 0.65 (0.47 to 0.84) |
p | 0.0118 | 0.0264 | < 0.0001 | < 0.0001 |