Table 1 Sociodemographic characteristics and IH risk factors
Start <5 weeks (N = 15) | Start >5 months (N = 328) | Total (N = 343) | |
|---|---|---|---|
Female sex (N, %) | 10 (66.7) | 232 (71) | 242 (70.8) |
Age at treatment start (median, range) | 0.8 (0-1.1) | 9 (5-90.7) | 8.7 (0-90.7) |
Age at treatment end (median, range) | 10 (7.3-15.2) | 16.1 (8.6-107.1) | 16 (7.3-107.1) |
Treatment duration (median, range) | 9.5 (6.3-14.5) | 6.8 (0.5-20) | 6.8 (0.5-20) |
Preterm (N, %) | 8 (53.3) | 49 (14.9) | 57 (16.6) |
Risk factors (N, %) | 9 (60) | 73 (22.3) | 82 (24) |
twins | 3 (20) | 16 (4.8) | 19 (5.5) |
IVF | 1 (6.7) | 2 (0.6) | 3 (0.9) |
family history of IE | 0 (0) | 9 (2.7) | 9 (2.6) |
amniocentesis | 1 (6.7) | 15 (4.6) | 16 (4.7) |
villocentesis | 2 (13.3) | 10 (3) | 12 (3.5) |
pre-eclampsia or placenta praevia | 2 (13.3) | 12 (3.7) | 14 (4) |