Table 4 Association rules analysis of CHD and comorbidities in children and adults

CHD

Perinatal diseases

1.72

47.55

3.94

1.71

31.56

2.64

CHD

Circulatory system diseases

1.63

45.10

0.62

1.95

36.11

0.50

CHD

Endocrine diseases

1.17

32.35

0.55

1.26

23.23

0.40

CHD

Respiratory system diseases

0.91

25.00

0.58

0.82

15.15

0.36

CHD

Blood diseases

0.64

17.65

0.59

0.63

11.67

0.38

CHD

Digestive system diseases

0.64

17.65

0.53

0.85

15.68

0.46

CHD

Genitourinary system diseases

0.59

16.18

0.48

0.57

10.60

0.31

CHD

Nervous system diseases

0.44

12.25

0.55

0.50

9.24

0.42

CHD

Pregnancy, childbirth, and puerperium complications

0.43

11.76

4.98

0.47

8.62

4.40

CHD

Other congenital anomalies

0.41

11.27

3.65

0.50

9.24

2.90

CHD

Mental disorders

0.41

11.27

0.42

0.50

9.29

0.33

CHD

Eye and adnexa diseases

0.32

8.82

1.58

0.35

6.49

1.21

CHD

Musculoskeletal system diseases

0.32

8.82

0.52

0.34

6.34

0.40

CHD

Skin and subcutaneous tissue diseases

0.14

3.92

0.45

0.29

5.32

0.59

CHD

Neoplasms

0.12

3.43

0.23

0.18

3.24

0.22

CHD

Infectious diseases

0.05

1.47

0.52

0.05

0.92

0.33

CHD

Ear and mastoid process diseases

0.02

0.49

0.51

0.03

0.53

0.58