Table 1.
Maternal and infant characteristics.
| Maternal age, years (mean and range) | 33 (20–45) |
| Maternal height, cm (mean and range) | 165 (135–181) |
| Maternal weight, kg (mean and range) | 67.1 (48.2–111) |
| BMI (mean and range) | 24.6 (17.9–38.9) |
| Blood group | |
| A (n and %) | 43 (37%) |
| B (n and %) | 14 (12%) |
| AB (n and %) | 2 (1.7%) |
| O (n and %) | 57 (49%) |
| Rhesus + (%) | 87.9% |
| Primiparous (%) | 58.62% |
| Non-white ethnicity (%) | 41.4% |
| Tdap vaccinated (%) | 61.2% |
| Gestation at Tdap (weeks) | 30.8 (20–39) |
| Flu vaccinated (%) | 50.0% |
| Gestation at flu (weeks) | 24.8 (5–39) |
| Vaginal delivery (%) | 44.0% |
| Delivery with labor (%) | 53.4% |
| Gestation at delivery (mean and range) | 40.1 (37+3–42+3) |
| Male sex baby (%) | 51.7% |
| Birth weight, kg (mean and range) | 3.45 (2.32–4.45) |