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. 2022 Aug 17;378:e071416. doi: 10.1136/bmj-2022-071416

Table 3.

Vaccination characteristics among 43 099 pregnant individuals who received one dose or more of a covid-19 vaccine during pregnancy. Values are numbers (percentages) unless stated otherwise

Characteristics ≥1 vaccine dose during pregnancy (n=43 099)
No of doses received during pregnancy
One dose 13 416 (31.1)
Two doses 29 650 (68.8)
Three doses 33 (0.1)
No of doses received during and/or after pregnancy
One dose during pregnancy 422 (1.0)
One dose during, one dose after, pregnancy 5555 (12.9)
One dose during, two doses after, pregnancy 7439 (17.3)
Two doses during pregnancy 9646 (22.4)
Two doses during, one dose after, pregnancy 20 004 (46.4)
Three doses during pregnancy 33 (0.1)
Trimester of vaccine dose 1 (overall)
First 5213 (12.1)
Second 20 715 (48.1)
Third 17 171 (39.8)
Median (IQR) gestational age (days) 176 (126-222)
Median (IQR) gestational age (weeks) 25.1 (18.0-31.7)
 Trimester of vaccine dose 1 (only one dose during pregnancy; n=13 416):
  First 93 (0.7)
  Second 1409 (10.5)
  Third 11 914 (88.8)
  Median (IQR) gestational age (days) 237 (217-253)
  Median (IQR) gestational age (weeks) 33.9 (31.0-36.1)
 Trimester of vaccine dose 1 (only two doses during pregnancy; (n=29 650):
  First 5091 (17.2)
  Second 19 302 (65.1)
  Third 5257 (17.7)
  Median (IQR) gestational age (days) 147 (110-184)
  Median (IQR) gestational age (weeks) 21.1 (15.7-26.3)
Trimester of vaccine dose 2 (only two doses during pregnancy; n=29 650)
First 301 (1.0)
Second 13 019 (43.9)
Third 16 330 (55.1)
Median (IQR) gestational age (days) 204 (165-239)
Median (IQR) gestational age (weeks) 29.1 (23.6-34.1)
Vaccine product received for dose 1
BNT162b2 (Pfizer-BioNTech) 34 526 (80.1)
mRNA-1273 (Moderna) 8453 (19.6)
Other* 120 (0.3)
Vaccine product for those who received two doses of mRNA vaccine during pregnancy (n=29 574)
BNT162b2+BNT162b2† 19 866 (67.2)
mRNA-1273+mRNA-1273† 5321 (18.0)
BNT162b2+mRNA-1273 or mRNA-1273+BNT162b2‡ 4387 (14.8)

IQR=interquartile range.

*

Includes non-mRNA covid-19 vaccines (eg, manufactured by Oxford-AstraZeneca and Johnson & Johnson-Janssen).

Same type of mRNA vaccine for doses 1 and 2 (homologous mRNA series).

Different type of mRNA vaccine for doses 1 and 2 (heterologous mRNA series).