Table 3.
Neonatal Outcomes by Maternal SARS-CoV-2 Diagnosis Before and After the Emergence of Variant B.1.1.7
| Pre-B.1.1.7 Emergence N = 67 | Post B.1.1.7 Emergence N = 66 | P value | |
|---|---|---|---|
| Time of maternal SARS-CoV-2 diagnosis | 1st March 2020 to 31st December 2020 | 1st January 2021 to 1st March 2021 | |
| Gestational age at diagnosis, weeks median (IQR) | 34.9 (30–38.9) | 37.7 (5–39) | 0.002*† |
| Gestational age at birth, weeks median (IQR) | 39.6 (38.6–40.3) | 39.3 (38.3–40.4) | 0.57* |
| Birth weight, kg median (IQR) | 3.46 (3.05–3.84) | 3.39 (2.97–3.82) | 0.91* |
| Preterm birth N (%) | 7 (10.5%) | 7 (10.6%) | 0.98‡ |
| NICU admission N (%) | 11 (16.4%) | 11 (16.7%) | 0.97‡ |
| Small for gestational age (<10th centile) N(%) | 4 (6%) | 3 (4.6%) | 0.71‡ |
*Mann Whitney U test.
†P < 0.05.
‡χ2 test.
NICU, neonatal intensive care unit.