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. Author manuscript; available in PMC: 2021 May 1.
Published in final edited form as: J Clin Immunol. 2020 Apr 2;40(4):592–601. doi: 10.1007/s10875-020-00773-y

Figure 1. Extraction and grouping of patients by the diagnoses of primary antibody immunodeficiency.

Figure 1.

Patients were extracted from the electronic medical record based on PAD ICD-9 and ICD-10 codes. Subsequently, the patients with any secondary reasons for antibody deficiency were excluded. The remaining patients were classified into four different groups of PADs based on basal immunoglobulin levels and pneumococcal vaccine responses.