IGHE and asthma: A study that conducted quantitative trait analyses on intermediate phenotypes related to asthma, such as post-bronchodilator FEV1, bronchodilator (BD) response, post-BD FEV1/FVC ratio, airway hyperresponsiveness to methacholine, total serum IgE levels, and total serum eosinophil counts, reported no significant associations between VDR polymorphisms and phenotypes in mixed-sex analyses.