Table 3. Comparison of prognostic values of SII with NLR and PLR.
| Variables | No. of studies | SII | NLR | PLR | |||||
|---|---|---|---|---|---|---|---|---|---|
| HR (95% CI) | P value | HR (95% CI) | P value | HR (95% CI) | P value | ||||
| OS | 6 | 1.82 (1.41–2.35) | <0.001 | 1.15 (0.83–1.59) | 0.395 | 1.16 (1.01–1.34) | 0.042 | ||
| DFS/PFS | 2 | 1.96 (1.36–2.90) | <0.001 | 1.02 (0.71–1.47) | 0.916 | 1.01 (0.66–1.55) | 0.951 | ||
SII, systemic immune inflammation index; NLR, neutrophil to lymphocyte ratio; PLR, platelet to lymphocyte ratio; HR, hazard ratio; CI, confidence interval; OS, overall survival; DFS, disease-free survival; PFS, progression-free survival.