Table 2 Sensitivity analysis for overall survival
Excluding study | Including studies | HR and 95% CI | P value | Heterogeneity (%) | P value for heterogeneity |
|---|---|---|---|---|---|
Aliustaoglu [23] | 22,24–49 | 1.36 (1.23–1.50) | < 0.001 | 67.9 | < 0.001 |
Lee [32] | 22–31,33–49 | 1.36 (1.23–1.50) | < 0.001 | 68.8 | < 0.001 |
Jiang [30] | 22–29,31–49 | 1.38 (1.25–1.53) | < 0.001 | 68.8 | < 0.001 |
Wang [45] | 22–44,46–49 | 1.38 (1.25–1.52) | < 0.001 | 69.3 | < 0.001 |
Lian [33] | 22–32,34–49 | 1.35 (1.23–1.49) | < 0.001 | 67.0 | < 0.001 |
Aldemir [22] (a) | 23–49 | 1.38 (1.25–1.52) | < 0.001 | 69.2 | < 0.001 |
Aldemir [22] (b) | 23–49 | 1.36 (1.23–1.50) | < 0.001 | 68.7 | < 0.001 |
Deng [24] | 22,23,25–49 | 1.39 (1.25–1.53) | < 0.001 | 68.3 | < 0.001 |
Gunaldi [28] | 22–27,29–49 | 1.37 (1.24–1.51) | < 0.001 | 69.2 | < 0.001 |
Hsu [29] | 22–28,30–49 | 1.38 (1.25–1.53) | < 0.001 | 68.8 | < 0.001 |
Kim [31] | 22–30,32–49 | 1.39 (1.25–1.53) | < 0.001 | 68.2 | < 0.001 |
Liu [34] | 22–33,35–49 | 1.38 (1.25–1.52) | < 0.001 | 69.3 | < 0.001 |
Sun [39] | 22–38,40–49 | 1.38 (1.25–1.53) | < 0.001 | 69.1 | < 0.001 |
Wang [42] | 22–41,43–49 | 1.33 (1.22–1.45) | < 0.001 | 55.8 | < 0.001 |
Feng [25] (a) | 22–24,26–49 | 1.37 (1.23–1.52) | < 0.001 | 68.9 | < 0.001 |
Feng [25] (b) | 22–24,26–49 | 1.36 (1.23–1.51) | < 0.001 | 68.1 | < 0.001 |
Sun [40] | 22–39,41–49 | 1.37 (1.24–1.51) | < 0.001 | 69.2 | < 0.001 |
Zhou [49] | 22–48 | 1.37 (1.24–1.52) | < 0.001 | 69.3 | < 0.001 |
Wen [46] | 22–45,47–49 | 1.37 (1.24–1.51) | < 0.001 | 69.3 | < 0.001 |
Fuentes [26] | 22–25,27–49 | 1.36 (1.23–1.49) | < 0.001 | 68.0 | < 0.001 |
Song [38] | 22–37,39–49 | 1.39 (1.28–1.52) | < 0.001 | 54.1 | < 0.001 |
Wang [43] | 22–42,44–49 | 1.37 (1.24–1.51) | < 0.001 | 69.3 | < 0.001 |
Wang [44] | 22–43,45–49 | 1.37 (1.24–1.52) | < 0.001 | 69.3 | < 0.001 |
Ramos-Esquivel [36] | 22–35,37–49 | 1.37 (1.24–1.51) | < 0.001 | 69.3 | < 0.001 |
Petrillo [35] | 22–34,36–49 | 1.37 (1.24–1.51) | < 0.001 | 69.3 | < 0.001 |
Saito [37] | 22–36,38–49 | 1.36 (1.23–1.50) | < 0.001 | 68.5 | < 0.001 |
Gong [27] | 22–26,28–49 | 1.37 (1.24–1.51) | < 0.001 | 69.4 | < 0.001 |
Zhang [48] | 22–47,49 | 1.37 (1.24–1.52) | < 0.001 | 69.3 | < 0.001 |
Tang [41] | 22–40,42–49 | 1.37 (1.24–1.51) | < 0.001 | 69.3 | < 0.001 |
Zhang [47] | 22–46,48,49 | 1.38 (1.25–1.53) | < 0.001 | 68.9 | < 0.001 |