Table 1.

Characteristics of study participants.

PID type	ICD-10 (number of patients)	Age	Gender
			Male	Female
Type I	D81 (17)	0–12 months	9	5
Immunodeficiencies affecting cellular and humoral immunity		1–6 years	2	0
		6–12 years	1	0
		12–18 years	0	0
Type II	D82 (13)	0–12 months	7	9
CID with associated or syndromic features	D82.1 (39)	1–6 years	26	17
	D82.4 (5)	6–12 years	10	6
	D84.8 (15)	12–18 years	4	3
	G11.3 (8)
Type III	D80.0 (4)	0–12 months	6	2
Predominantly antibody deficiencies	D80.1 (47)	1–6 years	21	17
	D80.2 (34)	6–12 years	28	21
	D80.3 (24)	12–18 years	38	13
	D80.4 (1)
	D80.5 (4)
	D83 (34)
Healthy children		0–12 months	9	5
		1–6 years	41	48
		6–12 years	36	33
		12–18 years	25	29

Provided codes are in accordance with International Classification of Diseases, 10th revision (ICD-10).