Table 1 Socio-demographic characteristics of the participant population (n = 523)*

General practitioner

58%

60%

68%

54%

54%

54%

Physiotherapist

23%

15%

21%

35%

26%

11%

Other

20%

25%

11%

12%

20%

35%

Paid job

Yes

24%

30%

11%

13%

36%

20%

No

76%

70%

89%

87%

64%

80%

Education

None

11%

0%

29%

24%

1%

8%

Primary school

36%

19%

34%

55%

36%

38%

Secondary school

14%

20%

9%

6%

22%

8%

Trade school/LBO/VMBO/MULO**

13%

25%

4%

1%

20%

10%

Senior secondary vocational education (MBO)

12%

19%

12%

3%

13%

13%

Higher professional education (HBO)

5%

9%

2%

1%

5%

11%

Other or unknown

8%

7%

10%

11%

5%

13%

length of residence in the Netherlands in years (sd)***

-

-

19.7 (7.8)

19.2 (9.6)

24.1 (9.3)

13.6 (9.8)

Marital status

Married/Living together with partner

54%

40%

83%

73%

35%

48%

Single/Divorced/Widow/Widower

47%

60%

17%

27%

65%

52%

Children, mean (sd)***

1.58 (1.5)

0.8 (1.0)

2.56 (1.6)

2.14 (1.6)

1.22 (1.1)

1.54 (1.5)

Median age

45

47

39

42

49

47

BMI, mean (sd)***

31 (7.3)

33 (9.3)

30 (4.8)

33 (8.1)

30 (6.0)

32 (5.8)

Physical activity during leisure time

Walking/Biking/Gardening and doing odd jobs

0 h/w

24%

18%

20%

21%

31%

30%

0–2 h/w

23%

18%

23%

30%

21%

28%

2–4 h/w

20%

19%

19%

21%

21%

18%

4–6 h/w

9%

10%

13%

9%

8%

4%

> 6 h/w

24%

35%

26%

19%

19%

20%

Gymnastics/Dancing/Swimming/Other sports

0 h/w

81%

82%

88%

76%

78%

83%

0–2 h/w

14%

10%

11%

19%

15%

11%

2–4 h/w

4%

3%

1%

4%

5%

3%

4–6 h/w

1%

2%

0%

1%

1%

1%

> 6 h/w

1%

4%

0%

0%

0%

1%