Demographic and clinical findings of the study participants
50 patients with confirmed diagnosis were enrolled in the study between October 2019 and January 2020. The majority of the patients were males (64%), the mean age of the patients was 36.68 ± 13.2 years, 88 % of patients (n=44) were younger than 50 years of age and 56 % (n=28) had a body mass index (BMI) within the normal range. 56 % of patients (n=28) had less than 13 years of education. The median duration of disease of the patients was 52.5 (6-384) months. The majority of the patients 86 % (n=43) received IVIG treatment. The median number of reported infections within 3 and 12 months before the participation of the test was 1 (min-max: 0-3) and 3 (min-max: 0-12), respectively. The main clinical and demographic features are summarized in Table 1.