There is a metanalysis whose main objective was the association of SNPs of IL10 with asthma, among which the analyzed polymorphisms rs1800872 (-592C/A) was included; Xue-yan Zheng showed the association of SNP with genotypes AC or AA to risk in Asian population and atopic asthma, but did not find this in Caucasians [22]. Here, IL10 is linked to asthma.