Table 1. Patient characteristics.

Characteristic	All	Subjects ≥20 y Adults	Subjects ≥12 <20 y Teenagers	Subjects <12 y Children
	(n = 50)	(n = 28)	(n = 7)	(n = 15)
Sex
Male/female N/N	25/25	10/18	3/4	12/3
%/%	50%/50%	36%/64%	43%/57%	80%/20%
Age (years)
Mean	29.5	45.5	15.2	6.2
Min to max	0.8–75.2	21.3–75.2	12.1–18.0	0.8–10.6
Weight (kg)
Mean	57.6	77.1	53.7	23.1
Min to max	10.1–132.7	46.0–132.7	37.2–70.1	10.1–48.2
Diagnosis
CVID/XLA	33	20	6	7
CVID	30	20	6	4
XLA	3	0	0	3
Other diagnosis	17	8	1	8
IgG subclass deficiency	5	3	0	2
Specific antibody deficiency	7	4	1	2
CD40 ligand deficiency	2	0	0	2
IgG heavy chain deficiency	1	1	0	0
Ataxia telangiectasia	1	0	0	1
Combined immunodeficiency	1	0	0	1
Prior therapy
SCIG	14	6	1	7
Home	10	4	1	5
Hospital	4	2	0	2
IVIG	36	22	6	8
Home	7	4	3	0
Hospital	29	18	3	8

CVID = common variable immunodeficiency

XLA = X-linked agammaglobulinaemia

n = number of patients

y = years