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Table 3 Association of GSTP1 methylation and tumor stage/histological grade in breast cancer

From: Aberrant GSTP1 promoter methylation is associated with increased risk and advanced stage of breast cancer: a meta-analysis of 19 case-control studies

Study groups Number OR (95 % CI) Heterogeneity
Ph I2 (%) χ 2
Stage 8 1.84 (1.32, 2.58) 0.20 29 9.81
Grade 5 0.74 (0.43, 1.26) 0.69 0 2.27
  1. N number of trials, OR odds ratio