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Table 3 Univariate Cox regression analysis for overall survival

From: The effect of bioequivalent radiation dose on survival of patients with limited-stage small-cell lung cancer

Factor Hazard ratio p 95% CI
Age (>65 y vs. ≤65 y) 1.667 0.007 1.147-2.424
Gender (female vs. male) 0.625 0.062 0.381-1.023
KPS (>80 vs. ≤80) 0.496 0.005 0.304-0.810
Weight loss (>5% vs. ≤5%) 1.820 0.004 1.205-2.749
LDH(>220 IU/L vs. ≤220 IU/L) 1.226 0.328 0.815-1.843
ISN (pre-treatment, yes vs. no) 1.408 0.166 0.867-2.287
Daily Fractions (once vs. twice) 1.112 0.575 0.768-1.609
TRT technique (3D vs. 2D) 0.821 0.357 0.539-1.249
CHT cycles (>5 vs. ≤5) 0.721 0.126 0.475-1.096
SER (>79 vs. ≤79 day) 1.097 0.623 0.758-1.587
ORT (>31 vs. ≤31 day) 1.356 0.106 0.937-1.964
BED (>57 vs. ≤57 Gy) 0.600 0.005 0.414-0.870
PCI (yes vs. no) 0.506 0.018 0.288-0.888
  1. Abbreviations as in Table 1