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. 2013 Feb 19;8(2):e55835. doi: 10.1371/journal.pone.0055835

Table 3. Meta-analyses of MTHFR C677T polymorphism and cervical cancer susceptibility after omitting the studies.

Polymorphism OR (95% CI) Z P OR I 2 (%) P Q Effect model
T vs. Ca 1.11 (0.97, 1.26) 1.55 0.12 6 0.38 F
TT vs. CCb 1.31 (1.01, 1.69) 2.05 0.04 5 0.40 F
TT+CT vs. CCa 1.12 (0.95, 1.33) 1.34 0.18 0 0.56 F
TT vs. CT+CCc 1.13 (0.92, 1.38) 1.20 0.23 19 0.27 F

Abbreviations and definitions: CI, 95% confidence intervals; OR, odds ratio; P Q, P value of Q test for heterogeneity; F, fixed-effect models.

a

MTHFR C677T polymorphism and cervical cancer susceptibility after excluding the three studies of Shekari M et al., Ma XC et al., and Zoodsma M et al.

b

MTHFR C677T polymorphism and cervical cancer susceptibility after excluding the two studies of Ma XC et al. and Zoodsma M et al.

c

MTHFR C677T polymorphism and cervical cancer susceptibility after excluding the study of Ma XC et al.