The meta-analysis of NHW and AA subjects in our childhood asthma GWAS found association with known asthma variants in IL1RL1 (rs10197862, adjusted p = 0.042), in IL13 (rs1295686, adjusted p = 0.043), and near the C11orf30-LRRC32 region (rs7130588, adjusted p = 0.005) (Additional file 1: Figure S8). This evidence concerns the gene IL13 and asthma.