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. 2018 Nov 14;2018:7375169. doi: 10.1155/2018/7375169

Table 3.

Pooled hazard ratios (HRs) for OS according to subgroup analyses.

Subgroup No. of studies No. of patients HR (95% CI) P value Heterogeneity
I2(%) Ph
Overall 8 1404 1.38 (1.19-1.62) <0.001 16.5 0.30
Treatment
 Surgery 5 840 1.43 (1.12-1.83) 0.005 30.8 0.22
 Chemoradiotherapy 1 257 1.19 (0.91-1.55) 0.200
 Mixed 1 120 1.89 (1.11-3.14) 0.020
Stage
 Mixed 6 866 1.40 (1.18-1.67) <0.001 8.2 0.36
 Metastatic 1 257 1.19 (0.91-1.55) 0.200
Cut-off
 ≥150 3 485 1.59 (1.03-2.46) 0.036 56.2 0.102
 <150 5 919 1.33 (1.14-1.56) <0.001 0 0.505
Analysis method
 Univariate 2 430 1.16 (0.93-1.45) 0.174 0 0.778
 Multivariate 6 974 1.52 (1.27-1.81) <0.001 0 0.426