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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Ann Thorac Surg. 2020 Apr 21;110(3):1023–1029. doi: 10.1016/j.athoracsur.2020.03.040

Table 4.

Cox Multivariable regression of subgroup analysis in 1187 patients with non-squamous and pathologically lymph node-positive disease. The results below represent the output from two separate multivariable Cox models, one treating time to adjuvant therapy as a categorical variable and the other as a continuous variable using the same covariates as in Tables 2 and 3 with the exclusion of the histology variable.

Predictor Hazard Ratio 95% Confidence Interval p-value
Lower Upper
Time to adjuvant therapy (reference: Q1 ≤45 days)
 Q2 46–60 days 1.10 0.88 1.36 0.40
 Q3 61–75 days 1.17 0.93 1.47 0.19
 Q4 >75 days 1.03 0.83 1.29 0.78
Time to adjuvant therapy (per day increase) 0.9996 0.9966 1.0026 0.80