Table 6 Association rules analysis of different severity CHD and comorbidities in adults

Severe CHD

Perinatal diseases

1.48

53.85

2.09

Other congenital anomalies

0.78

28.21

4.16

Circulatory system diseases

0.35

12.82

0.44

Genitourinary system diseases

0.21

7.69

0.97

Mental disorders

0.21

7.69

0.95

Blood diseases

0.21

7.69

0.81

Respiratory system diseases

0.21

7.69

0.60

Skin and subcutaneous tissue diseases

0.14

5.13

1.13

Nervous system diseases

0.14

5.13

0.71

Digestive system diseases

0.14

5.13

0.40

Endocrine diseases

0.14

5.13

0.27

Musculoskeletal system diseases

0.07

2.56

0.48

Shunt CHD

Perinatal diseases

17.60

33.88

1.32

Circulatory system diseases

15.55

29.93

1.03

Endocrine diseases

10.04

19.32

1.02

Digestive system diseases

7.92

15.24

1.18

Respiratory system diseases

7.14

13.74

1.07

Blood diseases

6.01

11.56

1.22

Pregnancy, childbirth, and puerperium complications

5.65

10.88

1.56

Genitourinary system diseases

4.73

9.12

1.15

Nervous system diseases

4.17

8.03

1.11

Eye and adnexa diseases

3.89

7.48

1.53

Mental disorders

3.89

7.48

0.93

Other congenital anomalies

3.82

7.35

1.08

Musculoskeletal system diseases

2.97

5.71

1.06

Skin and subcutaneous tissue diseases

2.12

4.08

0.90

Neoplasms

1.91

3.67

1.40

Ear and mastoid process diseases

0.35

0.68

1.07

Infectious diseases

0.21

0.41

0.83

Valve CHD

Circulatory system diseases

10.81

29.20

1.01

Endocrine diseases

7.35

19.85

1.04

Perinatal diseases

5.30

14.31

0.56

Respiratory system diseases

4.31

11.64

0.91

Digestive system diseases

3.96

10.69

0.83

Mental disorders

3.11

8.40

1.04

Blood diseases

2.47

6.68

0.71

Nervous system diseases

2.40

6.49

0.90

Genitourinary system diseases

2.26

6.11

0.77

Musculoskeletal system diseases

2.12

5.73

1.07

Skin and subcutaneous tissue diseases

1.77

4.77

1.05

Other congenital anomalies

1.27

3.44

0.51

Pregnancy, childbirth, and puerperium complications

1.13

3.05

0.44

Eye and adnexa diseases

0.78

2.10

0.43

Neoplasms

0.57

1.53

0.58

Infectious diseases

0.28

0.76

1.54

Ear and mastoid process diseases

0.28

0.76

1.20