Demographics and baseline characteristics of mothers and infants
| All mothers (n=18)* | |
| Mean (SD), unless otherwise stated | |
| Age, years | 33.7 (4.2) |
| Weight, kg | 68.9 (9.6)† |
| BMI, kg/m² | 23.6 (3.0)† |
| Location, n | |
| USA/Canada‡ | 10 |
| Switzerland | 5 |
| The Netherlands | 3 |
| Mother’s indication for CZP treatment, n† | |
| Rheumatoid arthritis | 7 |
| Crohn’s disease | 5 |
| Psoriatic arthritis | 3 |
| Axial spondyloarthritis/ankylosing spondylitis | 2 |
| All infants (n=17) | |
| Median (min–max), unless otherwise stated | |
| Female, n (%) | 11 (64.7) |
| Gestational age at birth, weeks | 40.0 (39.0–41.7) |
| Weight at birth, kg | 3.5 (2.6–4.1) |
| Length at birth, cm | 50.7 (48.0–57.0) |
| Age at time of mother’s first sample, months | 2.8 (1.6–16.8) |
| Age at time of mother’s first sample, n (%) | |
| ≤6 months | 13 (76.5) |
| >6 months–≤12 months | 2 (11.8) |
| ≥12 months–≤18 months | 2 (11.8) |
*Includes one screen failure.
†n=17.
‡One Canadian patient enrolled under the central USA site, which was approved by the Canadian central IRB.
BMI, body mass index; IRB, institutional review board.