Table 1 Clinical data from the young groups

Age, y

40.00 (23, 44)

39.94 (27, 44)

0.317

Male, n (%)

76 (88.37)

42 (53.16)

<0.001

BMI (kg/m²)

27.96 ± 2.80

25.16 ± 3.15

0.127

Systolic pressure (mmHg)

133.59 (90, 200)

134.82 (100, 190)

0.629

Diastolic pressure (mmHg)

81.03 (50, 124)

83.37 (60, 140)

0.957

Pulse pressure (mmHg)

52.67 (25, 90)

51.71 (30, 90)

0.608

Fasting blood sugar (mmol/L)

6.39 (3.76, 18.00)

5.25 (3.25, 12.35)

<0.001

HbA1C (%)

6.26 ± 1.69

5.45 ± 1.12

0.018

CK (U/L)

1950.28 ± 1639.52

81.15 ± 44.60

<0.001

CKMB (U/L)

163.99 ± 127.38

14.77 ± 13.35

<0.001

TNI (ng/mL)

3.08 (0.11, 30)

0.07 (0.05, 0.3)

<0.001

TG (mmol/L)

2.37 ± 2.48

2.25 ± 1.26

0.201

TC (mmol/L)

5.14 ± 1.39

4.65 ± 0.87

0.002

NHDL-C (mmol/L)

4.06 ± 1.35

3.53 ± 0.87

0.002

HDL-C (mmol/L)

1.07 ± 0.27

1.12 ± 0.26

0.856

Fib (g/L)

3.39 (1.90, 7.52)

2.87 (1.78, 5.30)

<0.001

Hypertension, n (%)

41 (47.67)

35 (44.30)

0.755

Type II diabetes, n (%)

18 (20.93)

17 (21.52)

1.000

Cerebrovascular diseases, n (%)

6 (6.98)

2 (2.53)

0.281

Alcohol drinking, n (%)

25 (29.07)

19 (24.05)

0.486

Smoking, n (%)

71 (82.56)

39 (49.37)

<0.001

Smoking index

329.53 (0, 1200)

179.49 (0, 900)

<0.001

Family history of early CAD, n (%)

47 (54.65)

26 (32.91)

0.007