Table 1 Characteristics of the study samples
|  | Betamethasone administration group (BET group, n = 52) | Control group (n = 84) | p valuea |
|---|---|---|---|
Mean age of pregnant person in years (SD) | 28.46 (6.24) | 29.60 (5.51) | 0.28 |
Ethnicity non-European (%) | 3 (5.8%) | 7 (8.3%) | 1.00 |
Smoking during pregnancy (% yes) | 14 (26.92%) | 18 (21.42%) | 0.60 |
Mean BMI before pregnancy (SD) | 24.30 (5.17) | 23.81 (4.21) | 0.58 |
Mean time between BET administration and birth in days (SD) | 67.38 (29.87) up to 7 days: 1 7–28 days: 4 28–56 days: 14 over 56 days: 33 | NA | NA |
Mean gestational age at birth in weeks (SD) | 38.03 (2.10) | 38.23 (1.88) | 0.56 |
Preterm birth (before week 37) | 17 (32.69%) | 17 (20.42%) | 0.15 |
Delivery mode: C-section | 11 (21.15%) | 24 (28.57%) | 0.44 |
Labor | 49 (94.23%) | 72 (85.71%) | 0.21 |
Parity | 1.65 (1.02) | 1.97 (1.41) | 0.13 |
Birth weight in grams | 3069 (539) | 3198 (436) | 0.15 |
Sex (% male) | 24 (46.15%) | 46 (54.76%) | 0.42 |