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. 2021 Feb 1;36(7):e52. doi: 10.3346/jkms.2021.36.e52

Table 4. Cox proportional hazards analysis for overall survival rate.

Covariate HR 95% CI P value
CCI 19.613 5.353–71.865 < 0.001
No. of spinal metastasis 2.244 1.048–4.233 0.044
Corpectomy 0.715 0.451–0.880 0.022
Spondylectomy 0.619 0.021–0.822 0.015
Time to metastasisa 0.487 0.128–0.826 0.045
Postop. chemotherapy 0.455 0.031–0.708 0.031

A P value of < 0.05 was considered to indicate statistical significance. The boldface type indicates statistical significance.

HR = hazard ratio, CI = confidence interval, CCI = Charlson comorbidity index, Postop = postoperative.

aTime to metastasis from diagnosis of non-small cell lung cancer.