Table 3.

Blood serology for SARS-CoV-2-specific antibodies in in 78 pregnant women who received a second dose and 84 pregnant women who received a third (booster) dose of BNT162b2 vaccine.

Variable	Second Vaccination (n = 78)	Third Vaccination (n = 84)	p Value
Serum IgG Before third dose (BAU/mL)	N/A	108.01 (±74.69)
Time from vaccination to serology test (days)	28.47 (±3.57)	31.94 (±4.34)	<0.001
Serum IgG 30 days after third dose (BAU/mL)	1333.75 (±917.35)	2177.93 (±1525.89)	<0.001

Data are given as mean ± SD or median (interquartile range). IgG, immunoglobulin G. BAU/mL, binding antibody units per milliliter.