From: Pregnancy and thrombosis risk for women without a history of thrombotic events: a retrospective study of the real risks
Risk antepartum
Risk postpartum
Group
N
Mean
SD
Median
Q1
Q3
p
Group A
445
1.9
2.2
1
2
3.1
2.3
4
< 0.0001
Group B
132
3.3
2.1
3
4.6
6
Group C
165
2.0
1.7
3.2