Fig. 4From: Stratified analyses of genome wide association study data reveal haplotypes for a candidate gene on chromosome 2 (KIAA1211L) is associated with opioid use in patients of Arabian descentThe distribution of the haplotypes in block 1 that include 5 SNPs between opioid users and controls. Haplotype 1 (GAGCG) the most statistically significant with higher frequency (0.713) in control group. Haplotype 2 (AGTTA) higher in cases (0.369) than control (0.219)Back to article page