Table 4 Heterogeneity analysis and Egger regression analysis IL-6 and IL-10 gene polymorphisms (rs1800795, rs1800796, rs1800797, rs13306435, rs2069849, rs1800871, and rs1800896)

rs1800795

Fixed

1.14

0.77

0

− 1.54

[− 3.58, 1.69]

0.263

rs1800796

Random

10.89

0.03

63

0.37

[− 4.15, 5.24]

0.736

rs1800797

Fixed

1.63

0.44

0

− 4.19

[− 14.66, 7.38]

0.149

rs13306435

Random

2.84

0.09

65

rs2069849

Fixed

0.13

0.72

0

rs1800871

Random

11.17

0.0008

91

rs1800896

Random

24.97

< 0.00001

92

14.47

[1.52, 23.42]

0.044