Pairwise linkage disequilibrium (LD) within Haploview using the D’ statistic for IL13.

Intensity of shading indicates the degree of confidence in the D’ value. Dark filled squares indicate a D’ value of 1. Untranslated regions are indicated with black bars, exons with dark gray bars and introns with light gray bars. Exons are numbered from 5′ to 3′.