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. 2021 Jan 14;21:63. doi: 10.1186/s12885-020-07751-y

Table 3.

Association between miR-34a expression levels and overall survivals

No.of studies No.of patients Pooled HR (95%CI) Meta regression p-value Heterogeneity
Fixed Random I2 p-value
Overall 18 1691 1.600 (1.44–1.77) 1.86 (1.52–2.28) 58.7% 0.001
Ethnicity 0.806
 Asian 15 1456 1.58 (1.42–1.76)  1.82 (1.48–2.24) 55.2% 0.005
 Caucasian 3 235 1.86 (1.25–2.76) 2.20 (0.90–5.37) 78.6% 0.009
Sample Size 0.979
  ≥ 100 7 937 1.51 (1.34–1.69) 1.61 (1.35–1.92) 36.1% 0.153
 <100 11 754 1.98 (1.59–2.48) 2.00 (1.37–2.93) 63.2% 0.002
NOS Scores 0.978
  ≥ 8 11 1100 1.53 (1.36–1.71) 1.75 (1.42–2.16) 49.5% 0.031
  < 8 7 591 2.00 (1.56–2.55) 1.87 (1.20–2.93) 65.8% 0.008
Specimen 0.933
 tissue 17 1532 1.57 (1.41–1.75) 1.87 (1.50–2.33) 60.2% 0.001
 plasma 1 159 1.88 (1.34–2.63) 1.88 (1.34–2.63)
Cancer Types 0.494
 EC 2 210 1.69 (1.04–2.74) 1.87 (0.88–4.00) 45.6% 0.175
 GC 5 457 1.33 (1.13–1.57) 1.25 (0.59–2.65) 68.3% 0.013
 HCC 4 339 1.60 (1.33–1.92) 1.84 (1.30–2.59) 48.7% 0.119
 PC 4 460 2.27 (1.77–2.89) 2.59 (1.69–3.97) 57.1% 0.072
 CRC 2 148 1.59 (1.03–2.47) 1.59 (1.03–2.47) 0.0% 0.556
 GBC 1 77 2.37 (1.11–5.06) 2.37 (1.11–5.06)

Abbreviations: 95%CI 95% confidence interval, CRC colorectal cancer, EC esophageal cancer, GBC gallbladder cancer, GC gastric cancer, HCC hepatocellular carcinoma, HR hazard ratio, NOS Newcastle-Ottawa Scale, PC pancreatic cancer