Table 3. Comparison of the tumor responses by the RECIST 1.0 versus RECIST 1.1.
| Tumor response by RECIST 1.0 | Tumor response by RECIST 1.1 | Total | |||
|---|---|---|---|---|---|
| CR | PR | SD | PD | ||
| CR | 1 | 0 | 0 | 0 | 1 |
| PR | 2 | 107 | 0 | 0 | 109 |
| SD | 0 | 15 | 111 | 4 | 130 |
| PD | 0 | 0 | 2 | 62 | 64 |
| Total | 3 | 122 | 113 | 66 | 304 |
Abbreviations: CR, complete response; PR, partial response; SD, stable disease; PD, progressive disease.
The level of concordance of tumor responses between the RECISI 1.1 and RECIST 1.0 is 0.908 (liner weighted k, 95% CI 0.872–0.945).
The overall response rates were not significantly different between the two criteria (41.1% by the RECIST 1.1 versus 36.2% by the RECIST 1.0, P = 0.212).