From: Elevated PD-L1 expression predicts poor survival outcomes in patients with cervical cancer
Factors | No. of studies | Effects model | HR (95% CI) | p | Heterogeneity I2(%) Ph | |
---|---|---|---|---|---|---|
OS | ||||||
 Total | 7 | Random | 2.52 (1.09–5.83) | 0.031 | 73 | 0.001 |
Ethnicity | ||||||
 Asian | 5 | Fixed | 4.77 (3.02–7.54) | < 0.001 | 18 | 0.3 |
 Caucasian | 2 | Fixed | 1.13 (0.68–1.88) | 0.634 | 0 | 0.562 |
Sample size | ||||||
 < 100 | 3 | Fixed | 5.01 (1.93–13.03) | 0.001 | 0 | 0.471 |
 ≥ 100 | 4 | Random | 1.75 (0.55–5.59) | 0.344 | 83.7 | < 0.001 |
Treatment | ||||||
 Surgery | 5 | Fixed | 3.04 (1.42–6.48) | 0.004 | 36.6 | 0.177 |
 Non-surgery | 2 | Random | 2.29 (0.51–10.34) | 0.28 | 93.6 | < 0.001 |
PFS | ||||||
 Total | 3 | Random | 2.07 (0.52–8.23) | 0.302 | 77.3 | 0.012 |
Ethnicity | ||||||
 Asian | 2 | Fixed | 4.78 (1.77–12.91) | 0.002 | 28.7 | 0.236 |
 Caucasian | 1 | NA | 1.02 (0.62–1.69) | 0.939 | NA | NA |