Baseline demographic and clinical characteristics
| Characteristic | Gammagard S/D (n=13) | Kiovig (n=14) |
| Age (y) | 54.0 (12.0) | 54.6 (13.8) |
| Men | 8 (62%) | 12 (86%) |
| IVIg dosage (g/week) | 12.5 (8–30) | 14.6 (10–38) |
| IVIg interval (days) | 18.8 (5.3) | 15.5 (4.1) |
| Bodyweight (kg) | 78.5 (13.2) | 85.6 (12.5) |
| ODSS score* (range 0–12) | 3.0 (0–7) | 3.7 (1–5) |
| MRC sum score* (range 0-60) | 53.6 (4.4) | 54.6 (3.4) |
| Vigorimeter* (range 0-160 kpa) | 89.3 (46.2) | 86.8 (31.0) |
Data are number (%), mean (SD) or median (range). Higher overall disability sum score (ODSS) values indicate more limitations. Higher Medical Research Council (MRC) sum score values and vigorimeter scores indicate greater strength.
↵* Mean value of the two measurements before randomisation at baseline.