In another study of 47 pediatric patients with allergic rhinitis to HDM and 15 non-allergic healthy subjects, the BAT test with HDM and a cut-off point of 12.5% CD63+ basophils yielded a sensitivity rate of 90%, specificity rate of 73%, positive predictive value of 0.70 and negative predictive value of 0.91 [42]. Here, CD63 is linked to allergic rhinitis.