Table 3.

History of IgRT

	N = 116
Age at start of IgRT (years)	115a	33.34 ± 20.17	[0–79.7; 33.6]
Duration of IgRT (years)	115a	8.5 ± 8.4	[0.2–38.5; 5.6]
History of at least one switch from IVIg to SCIg	49	42.2 %
History of at least one switch from SCIg to IVIg	14	12.1 %
Route of IgRT at enrollment
• IVIg at hospital	46	39.7 %
• IVIg at home	13	11.2 %
• SCIg at home	57	49.1 %)
Switch from IVIg to SCIg after enrollment	11	9.5 %
Switch from SCIg to IVIg after enrollment	2	1.7 %
Switch from hospital-based to home-based IgRT	12	10.3 %
Switch from home-based to hospital-based IgRT	2	1.7 %

^amissing data for one patient