To facilitate the identification of additional risk variants we conducted a meta-analysis pooling our UK-GWA Phase 1 and Phase 2 with two other studies: IARC-GWA and Texas-GWA. Pooling was based on the 21,620 autosomal SNPs genotyped in all three GWA studies which had MAFs >1% and no departure from HWE (P ≤ 10−5 in cases and controls).
