Univariate and multivariate Cox regression analyses for overall survival in patients undergoing primary surgery for stage I-II NSCLC.

Univariate and multivariate Cox regression analyses for overall survival in patients undergoing primary surgery for stage I-II NSCLC.针对接受初次手术的I-II期非小细胞肺癌（NSCLC）患者，开展总生存期相关的单变量与多变量Cox回归分析。