Physician Awareness and Understanding of Primary Immunodeficiency Disorder: A Web-based Study - PID-JAPAN physician survey study

45% physicians knew PID's symptoms and clinical conditions but 20% was aware of the diagnostic criteria and the recommended treatment. After presentation of patients' medical history, 74% physicians suspected PID and 60% physicians considered labo-tests for Serum IgG (IgA:55%, IgM:56%,IgE:33%). 72 physicians currently treated PID and 33% physicians who treated PID answered they control; serum immunoglobulin G trough level at 400-500 mg/dL, which is lower than the globally recommended standard value.