GWAS: SNPs Associated with ESCC Risk
Sample size
2,022 ESCC cases and 2,039 controls
Genotyping platform
SNPs were typed with Affymetrix GeneChip Human Mapping 6.0 set
Quality control criteria
Minor allele frequency (MAF) > 0.01
Hardy-Weinberg equilibrium with P > 1.0 × 10−6
Statistical methods
Imputed by MACH software based on the 1000 Genomes Project Phase 3 ASN (Asian) panel
An additive model in a logistic regression framework with age, sex, smoking and drinking as covariates
SNPs in the final analysis after imputation and QC
8,252,518 SNPs on autosomes
Manhattan plot of the genome-wide
P values of risk associations
The -log10 P values (y axis) of SNPs (P < 0.01) are shown according to their chromosomal positions (x axis), and the horizontal blue line represents the genome-wide significance threshold at P < 1.0 × 10-5.
Significant SNPs associated with risk of ESCC included in CCGD-ESCC
16,544 SNPs with P < 1.0 × 10-5