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Table 2 Prevalence and categories of CHD among infants by different areas in the Shaanxi provincea

From: Prevalence and risk factors of congenital heart defects among live births: a population-based cross-sectional survey in Shaanxi province, Northwestern China

Defectsb

Northern Shaanxi

Central Shaanxi

Southern Shaanxi

Total

n

per 10000 (95% CI)

n

per 10000 (95% CI)

n

per 10000 (95% CI)

n

per 10000 (95% CI)

Major CHD

18

24.1 (14.3, 38.0)

36

22.9 (16.1, 31.7)

22

37.2 (23.3, 56.3)

76

26.1 (20.6, 32.7)

 ASD,total

6

8.0 (2.9, 17.5)

15

9.6 (5.3, 15.8)

5

8.4 (2.7, 19.7)

26

8.9 (5.8, 13.1)

 ASD,simple

3

4.0 (0.8, 11.7)

5

3.2 (1.0, 7.4)

3

5.1 (1.0, 14.8)

11

3.8 (1.9, 6.8)

 ASD,complex

3

4.0 (0.8, 11.7)

10

6.4 (3.1, 11.7)

2

3.4 (0.4, 12.2)

15

5.2 (2.9, 8.5)

 VSD,total

5

6.7 (2.2, 15.6)

11

7.0 (3.5, 12.5)

4

6.8 (1.8, 17.3)

20

6.9 (4.2, 10.6)

 VSD,simple

3

4.0 (0.8, 11.7)

6

3.8 (1.4, 8.3)

2

3.4 (0.4, 12.2)

11

3.8 (1.9, 6.8)

 VSD,complex

2

2.7 (0.3, 9.7)

5

3.2 (1.0, 7.4)

2

3.4 (0.4, 12.2)

9

3.1 (1.4, 5.9)

 AVSD,total

2

2.7 (0.3, 9.7)

5

3.2 (1.0, 7.4)

5

8.4 (2.7, 19.7)

12

4.1 (2.1, 7.2)

 AVSD,simple

2

2.7 (0.3, 9.7)

5

3.2 (1.0, 7.4)

4

6.8 (1.8, 17.3)

11

3.8 (1.9, 6.8)

 AVSD,complex

0

0.0 (0.0, 4.9)

0

0.0 (0.0, 2.3)

1

1.7 (0.1, 9.4)

1

0.3 (0.1, 1.9)

 ToF

1

1.3 (0.1, 7.4)

2

1.3 (0.2, 4.6)

2

3.4 (0.4, 12.2)

5

1.7 (0.6, 4.0)

 PS

3

4.0 (0.8, 11.7)

0

0.0 (0.0, 2.3)

2

3.4 (0.4, 12.2)

5

1.7 (0.6, 4.0)

 HLHS

1

2.7 (0.1, 7.4)

2

0.6 (0.2, 4.6)

1

1.7 (0.1, 9.4)

4

1.4 (0.4, 3.5)

 CoA

0

0.0 (0.0, 4.9)

1

0.3 (0.1, 3.5)

1

1.7 (0.1, 9.4)

2

0.7 (0.2, 2.5)

 EA

0

0.0 (0.0, 4.9)

0

0.0 (0.0, 2.3)

2

3.4 (0.4, 12.2)

2

0.7 (0.2, 2.5)

Minor CHD

19

25.4 (15.3, 39.7)

83

52.9 (42.1, 65.5)

43

72.6 (52.6, 97.9)

145

49.8 (42.1, 58.6)

 Mild ASD

8

10.7 (4.6, 21.1)

31

19.7 (13.4, 28.0)

17

28.7 (16.7, 46.0)

56

19.2 (14.5, 25.0)

 Mild VSD

5

6.7 (1.6, 11.7)

19

12.1 (7.3, 18.9)

8

13.5 (5.8, 26.6)

32

11.0 (7.5, 15.5)

 Mild PS

1

1.3 (0.0, 4.9)

7

4.5 (1.8, 9.2)

2

3.4 (0.4, 12.2)

10

3.4 (1.6, 6.3)

 Unspecified CHD

5

6.7 (2.2, 15.6)

26

16.6 (10.8, 24.3)

16

27.0 (15.5, 43.9)

47

15.8 (11.9, 21.5)

Any CHD

37

49.5 (34.8, 68.2)

119

75.8 (62.8, 90.7)

65

109.8 (84.8, 140.0)

221

76.0 (66.3, 86.7)

  1. aValues are the number and proportion (95% CI) of CHD in the study population across different areas
  2. b Abbreviation: AVSD, atrioventricular septal defect, ASD atrial septal defect, VSD Ventricular septal defect, HLHS hypoplastic left heart syndrome, CoA Coarctation of the aorta, ToF Tetralogy of Fallot, PS Pulmonary valve stenosis, EA Ebstein’s anomaly
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