Table 3

Cox model analysis of overall survival timea

CoefficientSEP
Stage IIIa0.14
Stage IIIb0.16
Response (PR vs. none)0.18
Log(y1)0.610.150.000032
>27% Decrease in CYFRA−1.140.410.0052
  • a For this analysis, there were 38 uncensored patients. The remaining patients were either lost to follow-up or alive at the time of analysis. Stage IV was used as the default stage, and stages IIIa and IIIb were coded as dummy variables. Log(y1) is the natural logarithm of the pretreatment level of CYFRA. The coefficients and SE are provided for just a two-variable model that included just the last two variables, because the other three were not found to be significant.