Table 2 Results of sensitivity analysis
NLR values | Random effects model | Heterogeneity | Egger’s regression test for funnel plot asymmetry | ||||
|---|---|---|---|---|---|---|---|
Outcomes | Method | No. of articles | Hazard ratio (95% CI) | P-value | P-value | I squared (%) | P-value |
OS | Raw | 24 | 1.96 (1.66–2.31) | < 0.0001 | 0.0053 | 48.29% | 0.0007 |
|  | Trim-and-fill | 33 | 1.63 (1.35–1.97) | < 0.0001 | <  0.0001 | 65.38% | 0.5874 |
DFS | Raw | 12 | 1.90 (1.41–2.54) | < 0.0001 | 0.0002 | 70.39% | 0.0017 |
|  | Trim-and-fill | 17 | 1.53 (1.12–2.08) | 0.0068 | < 0.0001 | 75.53% | 0.2780 |