Astra Zeneca
(N=441)
Pfizer-BioNTech
(N=513)
RR
(95% CI)
AD
(95% CI)
p-value
Pregnancy outcomes Pregnancy outcomes Pregnancy outcomes Pregnancy outcomes Pregnancy outcomes Pregnancy outcomes
Preeclampsia after vaccination – n (%)
1 (0.2) 5 (1.0) 4.3 (0.5, 36.65) 0.75 (-0.42, 1.92) 0.225
Diabetes after vaccination – n (%)
1 (0.2) 5 (1.0) 4.3 (0.5, 36.65) 0.75 (-0.42, 1.92) 0.225
Gestational age at birth – weeks
38.4±1.6 38.6±1.3 - 0.1 (-0.1, 0.3) 0.176
Preterm delivery – n (%)
< 28 weeks 3 (0.7) 0 (0.0) - - -
< 34 weeks 6 (1.4) 8 (1.6) 1.15 (0.4, 3.28) 0.2 (-1.52, 1.92) 0.95
< 37 weeks 28 (6.4) 34 (6.6) 1.04 (0.64, 1.69) 0.28 (-3.07, 3.62) 0.9
Oligohydramnios
12 (2.7) 15 (2.9) 1.07 (0.51, 2.26) 0.19 (-2.11, 2.49) 0.95
Polyhydramnios
14 (3.2) 23 (4.5) 1.41 (0.74, 2.71) 1.31 (-1.33, 3.95) 0.381
Being monitored at ICU
0 (0) 2 (0.4) - - -
Stillbirth
2 (0.5) 1 (0.2) -0.26 (-1.2, 0.69) 0.43 (0.04, 4.72) 0.6
Maternal death
0 (0.0) 0 (0.0) - - .
Neonatal outcomes Neonatal outcomes Neonatal outcomes Neonatal outcomes Neonatal outcomes Neonatal outcomes
Birth weight – grams 3148.3±376.8 3132.1±403.5 - -16.1 (-65.9, 33.6)
0.524
Low birth weight (under 2500g) – n (%) 11 (2.5) 27 (5.3) 2.1 (1.05, 4.18) 2.75 (0.12, 5.39)
0.046
Heavy birth weight (over 4000g) – n (%) 6 (1.4) 10 (2.0) 1.42 (0.52, 3.88) 0.58 (-1.25, 2.41) 0.66
Birthweight percentile 50.0 [25.0; 75.0] 50.0 [25.0; 75.0] - - 0.445
Birthweight < 10th percentile – n (%) 65 (14.7) 85 (16.6) 1.12 (0.84, 1.51) 1.83 (-3, 6.66) 0.493
NICU – n (%) 24 (5.5) 23 (4.5) 0.82 (0.47, 1.44) -0.96 (-3.95, 2.03) 0.594
Birth defects – n (%) 4 (0.9) 4 (0.8) 0.86 (0.22, 3.42) -0.13 (-1.42, 1.17) 0.95