Methodological cutoff of basophil activation test and basophil activation test diagnostic value  Sten Dreborg, MD, PhD  The Journal of Allergy and Clinical.

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Presentation transcript:

Methodological cutoff of basophil activation test and basophil activation test diagnostic value  Sten Dreborg, MD, PhD  The Journal of Allergy and Clinical Immunology: In Practice  Volume 6, Issue 3, Pages 1089-1090 (May 2018) DOI: 10.1016/j.jaip.2017.10.038 Copyright © 2017 American Academy of Allergy, Asthma & Immunology Terms and Conditions

Figure 1 A, A copy of Figure 2, A, in the original communication.1 The solid red line indicates an SI of 2 and the broken red line an SI of 1. Observe that some of the controls, and even drug-stimulated basophils, have an SI below 1; ie, the spontaneous activation of basophils was higher than the activation by drugs. The number of positive and negative test results is highly influenced by changing the cutoff from 1.5 to more than 2. B, The same data as in Figure 1, A. Numbers indicate the negative test results. Data are approximate because I do not have the original data at hand. To better illustrate the results, the Y-axis should have a log-transformed scale, because the data are not normally distributed (like most biological data). AX, Amoxicillin; CLV, clavulanic acid. Modified with permission from Salas M, Fernández-Santamaría R, Mayorga C, Barrionuevo E, Ariza A, Posadas T, et al. Use of basophil activation test may reduce the need for drug provocation in amoxicillin-clavulanic allergy. J Allergy Clin Immunol Pract 2018;6:1010-8.1 The Journal of Allergy and Clinical Immunology: In Practice 2018 6, 1089-1090DOI: (10.1016/j.jaip.2017.10.038) Copyright © 2017 American Academy of Allergy, Asthma & Immunology Terms and Conditions