Table 1 Demographics of respondents

Male*

2349 (44.4)

248 (55.4)

2101 (43.3)

Age (year)*

Mean ± SD

53.4 ± 16.2

65.0 ± 9.4

52.4 ± 16.3

Range

18–80

21–80

18–80

Questionnaire type

Internet survey*

2196 (41.4)

160 (35.6)

2036 (41.9)

Diabetes-coexisting diseases

Hypertension*

1564 (29.5)

349 (77.7)

1215 (25.0)

Hypercholesterolemia *

1078 (20.3)

298 (66.4)

780 (16.1)

Musculoskeletal disorders*

838 (15.8)

116 (25.8)

722 (14.9)

Heart problems*

581 (11.0)

134 (29.8)

447 (9.2)

Sleep problems*

383 (7.2)

68 (15.1)

315 (6.5)

GI disorders*

330 (6.2)

45 (10.0)

285 (5.9)

Kidney disease

10 (0.2)

2 (0.4)

8 (0.2)

Number of diabetes-coexisting diseases*

0

2682 (50.5)

30 (6.6)

2652 (54.6)

1

1281 (24.1)

97 (21.6)

1184 (24.3)

2

734 (13.8)

137 (30.5)

597 (12.2)

3

434 (8.1)

122 (27.2)

312 (6.3)

4 or more

174 (3.2)

63 (14.0)

111 (2.2)

Marital status*

Married

3197 (60.4)

247 (61.4)

2923 (60.4)

Unmarried

1107 (20.9)

56 (12.6)

1051 (21.7)

Divorced or separated

643 (12.2)

57 (12.8)

586 (12.1)

Widowed

342 (6.5)

59 (13.2)

283 (5.8)

Level of education*

Elementary school

779 (14.8)

126 (28.2)

653 (13.5)

High school

415 (7.9)

16 (3.6)

399 (8.3)

Vocational school

1979 (37.6)

182 (40.7)

1797 (37.3)

College

851 (16.2)

52 (11.6)

799 (16.6)

University

1120 (21.3)

55 (12.3)

1065 (22.1)

Other

124 (2.4)

16 (3.6)

108 (2.2)

Household income*

Less than 1000 €

538 (10.3)

48 (10.9)

490 (10.3)

1001–2000 €

1292 (24.8)

134 (30.5)

1158 (24.3)

2001–3000 €

1219 (23.4)

115 (26.1)

1104 (23.1)

3001–4000 €

1053 (20.2)

79 (18.0)

974 (20.4)

4001–5000 €

619 (11.9)

36 (8.2)

583 (12.2)

5001–8000 €

403 (7.7)

21 (4.8)

382 (8.0)

Over 8000 €

91 (1.8)

7 (1.6)

84 (1.8)

Employment*

Full time work

2094 (39.6)

74 (16.5)

2020 (41.8)

Part time work or retirement

346 (6.6)

23 (5.1)

323 (6.7)

Unemployed or laid off

374 (7.1)

26 (5.8)

348 (7.2)

Retired

1942 (36.8)

313 (69.9)

1629 (33.7)

Other

526 (10.0)

12 (2.7)

415 (10.6)