Development of a primary care screening algorithm for the early detection of patients at risk of primary antibody deficiency

Table 1 Overview of candidate components from primary care electronic health records

Type of electronic health record data	Description
ICPC codes	Diagnostic codes related to presenting signs and symptoms of PAD For exclusion criteria: diagnostic codes related to causes of secondary antibody deficiencies
ATC codes	Antibiotic prescriptions for the treatment of respiratory tract or parasitic infections
Laboratory results	IgA, IgM, IgG (total and subclasses), calculated globulin
Number of visits	Number of physical or telephone appointments with the general practitioner
Number of requests for additional tests	Number of requests for CRP, leukocytes and lung function tests

Overview of candidate components for the algorithm as extracted from structured primary care EHR data
ATC Anatomical Therapeutic Chemical, CRP C-reactive protein, EHR electronic health record, ICPC International Classification of Primary Care, Ig immunoglobulin, PAD primary antibody deficiencies

ISSN: 1710-1492