Comparison of risk allele, frequency of risk allele in cases and controls and effect size in our study population and previously published studies for candidate gene polymorphisms with a p- value of <0.05 in our population (for complete results on all tested SNPSs see table S2).

+The OR and confidence intervals were calculated based on published data.
++Allele frequency of the entire study is provided if separate allele frequencies were not applied or haplotype or family studies have been conducted.
+++In the Chinese population the G allele is the major allele.
*Allele is either announced as the risk allele or described to be overtransmitted to asthmatic patients.
**The haplotype containing this allele is associated with the susceptibility to asthma.