Characteristics of studies included in the meta-analysis for an association between XPF-rs1800067, rs1799801, rs2020995, rs744154 SNPs and risk of cancers.

Abbreviation: SNP, single nucleotide polymorphism; HB, Hospital based; PB, Population based; FB, Family based; RFLP, Restriction fragment length polymorphisms.aP value for dominant genetic model in the associations with XPF polymorphisms.bStatistical power to detect an OR of 1.5 (or 0.67 = 1/1.5).