Figure 5: Meta-analysis results of the association between AR+asthma and (A) RHIN-Total score and (B) CARAT-Total score, stratified by countries.
Models were adjusted for sex, age, smoking status, exposure to smoke, education, ARIA grade, sensitivity to allergens, and drugs taken in the last 12 months as fixed factors. I-squared, variation in estimated effect attributable to heterogeneity.