Participants (n=28) Non-participants (n=8) P-value
Maternal age (years) 30.0 (±4.5) 30.0 (±7.9) 0.99
Pre-pregnancy BMI (kg/m2) 24.25 (20.8;28.2) 27.93 (20.5;30.1) 0.54
Current smoker 2 (7.1) 0 1.00
Parity, nulliparous 11 (39.3) 3 (37.5) 1.00
Ethnicity, Caucasian 15 (53.6) 4 (50.0) 1.00
Pre-existing medical disorders* 7 (25.0) 2 (25.0) 1.00
Presenting symptoms Presenting symptoms Presenting symptoms Presenting symptoms
Headache 18 (64.3)
Cough 19 (67.9)
Sore throat 16 (57.1)
Nasal congestion 18 (64.3)
Muscle soreness 11 (39.3)
Fever 16 (57.1)
Anosmia 13 (46.4)
Dyspnoea 7 (25.0)
Diarrhoea 4 (14.3)
Asymptomatic 4 (14.3)
Maternal admission due to COVID-19 Maternal admission due to COVID-19 Maternal admission due to COVID-19 Maternal admission due to COVID-19
Medical ward 3 (10.7) 0 1.00
ICU 0 0
Pregnancy complications Pregnancy complications Pregnancy complications Pregnancy complications
Gestational hypertension 1 (3.6) 0 1.00
Preeclampsia 0 1 (12.5) 0.22
Deep venous thrombosis 1 (3.6) 0 1.00
Pulmonary embolism 1 (3.6) 0 1.00
Gestational diabetes mellitus 2 (7.1) 1 (12.5) 0.54
Delivery mode Delivery mode Delivery mode Delivery mode
Vaginal delivery 19 (67.9) 4 (50.0) 0.42
Vaginal, vacuum extraction 1 (3.6) 0 1.00
Elective caesarean section 4 (14.3) 1 (12.5) 1.00
Acute caesarean section 4 (14.3) 3 (37.5) 0.17
Perinatal outcomes Perinatal outcomes Perinatal outcomes Perinatal outcomes
GA (days) 280.0 (269.8;285.8) 269.5 (259.6;280.0) 0.19
Preterm delivery (< 37+0 weeks) 2 (7.1) 1 (12.5) 0.54
Offspring gender (girl) 16 (57.1) 4 (50.0) 1.00
Birth weight (Z-score) -0.10 (-0.8;0.5) -0.73 (-1.7;0.0) 0.17
Artery pH < 7.1 1 (4.5) 0 1.00
Apgar (5 min) < 7 1 (3.6) 0 1.00
NICU 3 (10.7) 2 (25.0) 0.31
Neonatal death 1 (3.6) 0 1.00