Table 1. Demographic data.

	Means ± Standard Deviation
Age (years)	67.1±12.1
Sex (M:F)	43:57
Body mass index	30.4±9.4
FEV1 (L/sec)	1.2±0.8
FEV1%	46.3±18.6
FEV1/FVC	43.4±15.3
Total IgG (g/L)	6.2±2.2
Ig administration	IV:SC 6:7*
Dosage (g/kg)	0.5±0.3

IV = intravenous

SC = subcutaneous

FEV1 –forced expiratory volume in 1 second

FEV1%—percentage of average normal predicted FEV1 value

FVC–forced vital capacity

*one person switched from IV to SC