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Table 3 Evaluations for the potential publication bias within the meta-analysis

From: Clinicopathological significance of HSP70 expression in gastric cancer: a systematic review and meta-analysis

Groups of outcomes Reference count Estimates Begg’s test (p value) Egger’s test (p value) Publication bias
Age (≤ 60 years vs > 60) 2 OR with 95% CI 1.000 Not reported Not significant
Gender (male vs female) 8 OR with 95% CI 0.536 0.786 Not significant
Depth of invasion (T3/T4 vs T1/T2) 7 OR with 95% CI 0.368 0.304 Not significant
Differentiation degrees (low vs high) 5 OR with 95% CI 1.000 0.745 Not significant
H.pylori infection (positive vs negative) 2 OR with 95% CI 1.000 Not reported Not significant
Histological subtypes (intestinal vs diffuse) 4 OR with 95% CI 1.000 0.493 Not significant
Lymph node invasion (positive vs negative) 9 OR with 95% CI 0.466 0.101 Not significant
TNM stages (I/II vs III/IV) 6 OR with 95% CI 1.000 0.653 Not significant
Lymphovascular invasion (positive vs negative) 5 OR with 95% CI 0.221 0.180 Not significant
Metastasis (positive vs negative) 5 OR with 95% CI 0.221 0.295 Not significant
Prognostic significance 6 HR with 95% CI 1.000 0.781 Not significant
  1. OR odds ratio; HR hazard ratio; CI confidence interval