Table 1 Basic characteristics of included subjects according to OA status (n = 5764)

Participants (n)

1669

4095

–

MetS (%)

20.3

16.6

0.001

Age (years)

55.84 (8.01)

51.81 (6.84)

<0.001

BMI (kg/m²)

24.84 (3.36)

24.36 (3.14)

<0.001

Female (%)

43.3

46.8

0.018

Smoking (%)

21.2

22.5

0.251

Alcohol drinking (%)

37.1

38.9

0.223

High school diploma (%)

46.2

47.7

0.306

Activity level (h/w)

2.49 (3.71)

2.20 (3.43)

0.069

Fasting glucose (mmol/l)

5.81 (1.74)

5.66 (1.62)

<0.001

systolic pressure (mm Hg)

128.56 (17.20)

125.40 (17.49)

<0.001

Diastolic pressure (mm Hg)

80.62 (11.39)

79.92 (12.13)

0.008

HDL-cholesterol (mmol/l)

1.49 (0.38)

1.52 (0.40)

0.041

Triglyceride (mmol/l)

1.96 (1.85)

1.93 (1.81)

0.476

HsCRP (mg/l)

2.30 (4.95)

2.39 (5.56)

0.755