Fig. 3From: An epistatic interaction between pre-natal smoke exposure and socioeconomic status has a significant impact on bronchodilator drug response in African American youth with asthmaProportion of Bronchodilator Drug Responders and Non-Responders by Pre-natal Smoke Exposure and Socioeconomic Status (Smoke x SES) Interaction Group. Stacked Box Plots of Proportion of BDR responders and non-responders by Smoke x SES Interaction group membership separated by sex. Blue horizontal line indicates 50%. Bars are colored by BDR responder status. P-values presented are from the Ļ2 statistic of the two-group test of proportions; when bin sizes wereā<ā5, the Fisherās Exact test was used instead. P-values in bold font were significant after Bonferroni correction for multiple testingBack to article page