Table 3.

Analysis of Threshold Effect of NLR (per Unit Increase) on Death Risk

Outcome	HR (95% CI) P-value
Model I	1.10 (1.01–1.19) 0.0283*
Model II
Inflection point (K=4.5)
<K	1.32 (1.03–1.69) 0.0258*
>K	1.02 (0.89–1.16) 0.8079
Wald test	0.1110
Log likelihood ratio test	0.107

Notes: Figures in the table: HR (95% CI) P value. Model I: Cox proportional hazard model; Model II: two-piecewise Cox proportional hazard model; both models adjusted for sex, tumor stage, smoking status, number of metastatic sites, ALB, BMI, CRP, and LDH. The Wald test was performed to determine whether HR (<K) was equal to HR (>K); Log likelihood ratio test was performed to determine any differences between model I and model II. *P-values less than 0.05.