CHIA and asthma: In the subgroup analysis done on the basis of ethnicity, a positive correlation was found between CHIA rs10494132 polymorphism and asthma risk among Asians under the recessive model (TT vs. TC + CC: OR = 1.476, 95% CI = 1.071–2.032, P = 0.017) and the allele model (T vs. C: OR = 1.326, 95% CI = 1.024–1.717, P = 0.032) (Fig. 3).