Table 4.
Inter-rater agreement between biochemical response and positron-emission tomography response criteria in solid tumors criteria by deriving Cohen’s Kappa coefficient (k)
| Biochemical response | Total (%) | P | κ | |||
|---|---|---|---|---|---|---|
| PD (%) | PR (%) | SD (%) | ||||
| PERCIST criteria | ||||||
| PD | 5 (21.74) | 0 (0.00) | 3 (13.04) | 8 (34.78) | 0.044 | 0.307 |
| PR | 1 (4.35) | 2 (8.70) | 2 (8.70) | 5 (21.74) | ||
| SD | 3 (13.04) | 1 (4.35) | 6 (26.09) | 10 (43.48) | ||
| Total | 9 (39.13) | 3 (13.04) | 11 (47.83) | 23 (100.00) | ||
PERCIST: Positron-emission tomography response criteria in solid tumors, PD: Progressive disease, PR: Partial response, SD: Stable disease