Metabolic response (n) | ||||
Regimen | Responder (n = 33) | Nonresponder (n = 23) | P | |
Regression grade | 1a | |||
n | 4 (12) | 1 (4) | ||
95% CI | 3%–28% | 0.1%–22% | ||
Regression grade | 1b | 0.56 | ||
n | 8 (24) | 5 (22) | ||
95% CI | 11%–42% | 7%–44% | ||
Regression grade | 2 | |||
n | 7 (21) | 7 (30) | ||
95% CI | 9%–39% | 13%–53% | ||
Regression grade | 3 | |||
n | 13 (39) | 9 (39) | ||
95% CI | 23%–58% | 20%–61% | ||
Unknown | 1 | 1 |
Data in parentheses are percentages.
Histopathologic response was scored according to Becker et al. (19): score 1a indicates complete remission, 0% residual tumor; score 1b, <10% residual tumor; score 2, 10%–50% residual tumor; score 3, >50% residual tumor.