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Table 4 Publication bias tests (Begg’s funnel plot and Egger’s test for publication bias test) for IL-6 rs1800795 polymorphism and T2DM and T1DM risk

From: IL-6 gene rs1800795 polymorphism and diabetes mellitus: a comprehensive analysis involving 42,150 participants from a meta-analysis

Egger's test Begg's test
Genetic type Coefficient Standard error t P value 95%CI of intercept z P value
T2DM        
 C-allele vs. G-allele − 0.842 0.636 − 1.32 0.195 (− 2.139–0.455) 1.02 0.306
 CG vs. GG − 0.688 0.469 − 1.47 0.152 (− 1.645–0.268) 1.18 0.239
 CC + CG vs. GG − 0.756 0.511 − 1.48 0.149 (− 1.799–0.287) 1.05 0.292
 CC vs. GG − 0.318 0.301 − 1.06 0.301 (− 0.636–0.300) 0.34 0.736
 CC vs. CG + GG − 0.304 0.32 − 0.95 0.351 (− 0.961–0.353) 0.45 0.653
T1DM        
 C-allele vs. G-allele 1.268 0.697 1.82 0.099 (− 0.286–2.823) 1.17 0.244
 CG vs. GG 0.858 0.454 1.89 0.088 (− 0.152–1.869) − 0.07 1
 CC + CG vs. GG 0.894 0.481 1.86 0.093 (− 0.178–1.967) 0.21 0.837
 CC vs. GG 0.455 0.323 1.41 0.189 (− 0.265–1.174) 0.75 0.451
 CC vs. CG + GG 0.523 0.384 1.36 0.202 (− 0.331–1.379) 0.34 0.732