Table 1 Summary risk estimates of the association between selective serotonin reuptake inhibitor use and cardiovascular-related malformations.

From: Use of selective serotonin-reuptake inhibitors in the first trimester and risk of cardiovascular-related malformations: a meta-analysis of cohort studies

 

No. of study

Summary RR (95%CI)

I2 (%)

P*

P**

Overall

18

1.26 (1.13–1.39)

53.6

0.003

 

Cardiac malformation

7

1.17 (1.06–1.28)

31.0

0.19

 

ASD

6

2.06 (1.40–3.03)

57.8

0.04

 

VSD

7

1.15 (0.97–1.36)

30.3

0.20

 

ASD and/or VSD

14

1.27 (1.14–1.42)

40.0

0.04

 

Geographic Location

    

0.52

 Northern America

5

1.22 (1.12–1.34)

0.0

0.51

 

 Europe

11

1.27 (1.08–1.48)

67.3

0.001

 

 Others

2

1.71 (1.23–2.37)

0.0

0.45

 

Adjustment for confounders

 Maternal age

    

0.39

Yes

13

1.23 (1.07–1.41)

62.7

0.001

 

No

5

1.34 (1.13–1.59)

18.0

0.30

 

 Socioeconomic status

    

0.23

Yes

4

1.39 (0.97–2.00)

75.1

0.007

 

No

14

1.19 (1.09–1.30)

29.5

0.14

 

 Smoking or alcohol drinking

    

0.72

Yes

9

1.24 (1.05–1.47)

72.7

<0.001

 

No

9

1.27 (1.14–1.41)

6.0

0.39

 

 Pregnancy BMI

    

0.29

Yes

3

1.10 (0.89–1.36)

0.0

0.70

 

No

15

1.29 (1.15–1.46)

62.2

0.001

 

 Pregnancy complications

    

0.06

Yes

6

1.13 (1.05–1.22)

0.0

0.96

 

No

12

1.40 (1.17–1.67)

63.1

0.002

 

 Parity

    

0.73

Yes

6

1.31 (1.05–1.63)

82.0

<0.001

 

No

12

1.24 (1.14–1.34)

0.0

0.47

 
  1. *P for heterogeneity within each subgroup.
  2. **P for heterogeneity between subgroups with meta-regression analysis.
  3. Abbreviations: ASD, atrial septal defect; BMI, body mass index; CI, confidence interval; RR, relative risk; VSD, ventricular septal defect.