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Table 3 Relationship between the types and time of thromboembolism onset/maternal deaths from thromboembolism

From: A retrospective cohort study using a national surveillance questionnaire to investigate the characteristics of maternal venous thromboembolism in Japan in 2018

 

Overall

(n = 243, 100%)

A. DVT

(n = 157, 64.6%)

B. PE*

(n = 56, 23.0%)

C. Other VT

(n = 26, 10.7%)

D. ATE

(n = 4, 1.6%)

p-value

 < 0.05

Thromboembolism onset

Overall

243 (100%)

157 (100%)

56 (100%)

26 (100%)

4

(100%)

A vs. B: 0.0044

 Antepartum

165

(67.9%)

125

(79.6%)

20

(35.7%)

16

(61.5%)

4

(100%)

A vs. B:

 < 0.0001

B vs. C:

0.0339

 Antepartum with operation

18

(7.4%)

11

(7.0%)

6

(10.7%)

0

(0.0%)

1

(20.0%)

NS

 Postpartum

79

(32.5%)

32

(20.4%)

36

(64.3%)

10

(38.5%)

0

(0.0%)

A vs. B:

 < 0.0001

B vs. C:

0.0339

 Cesarean section

50

(20.6%)

17

(10.8%)

26

(46.4%)

7

(26.9%)

0

(0.0%)

A vs. B:

0.0175

Maternal deaths from thromboembolism

Overall

4

(1.6%)

0

(0.0%)

4

(7.1%)

0

(0.0%)

0

(0.0%)

A vs. B:

0.0044

 Antepartum

1

(0.4%)

0

(0.0%)

1

(1.8%)

0

(0.0%)

0

(0.0%)

NS

 Antepartum with operation

0

(0.0%)

0

(0.0%)

0

(0.0%)

0

(0.0%)

0

(0.0%)

NS

 Postpartum

3

(1.2%)

0

(0.0%)

3

(1.2%)

0

(0.0%)

0

(0.0%)

A vs. B:

0.0175

 Cesarean section

3

(1.2%)

0

(0.0%)

3

(1.2%)

0

(0.0%)

0

(0.0%)

A vs. B:

0.0175

  1. DVT Deep vein thrombosis, PE Pulmonary thromboembolism, Other VT Other vein thrombosis, ATE Arterial thromboembolism, NS Not significant
  2. *Venous thromboembolism was DVT and/or PE. The simultaneous occurrence of DVT and PE was defined as PE