Table 1 Description of the sample (n = 1824) according to gender in percentages; the number of individuals is presented within the brackets

Age

<0.001

 60–69

10.1 (68)

5.1 (58)

6.9 (126)

 70–79

35.2 (238)

23.3 (268)

27.7 (506)

  ≥ 80

54.7 (370)

71.6 (822)

65.4 (1192)

 Mean age (SD)

81.1 (8.8)

84.8 (8.6)

83.4 (8.8)

<0.001^a

Smoker

<0.001

 Current

10.5 (71)

9.2 (106)

9.7 (177)

 Never

51.0 (345)

69.5 (798)

62.7 (1143)

 Previous

38.5 (260)

21.3 (244)

27.6 (504)

Mobility

<0.001

 Without support

56.1 (379)

41.3 (474)

46.7 (852)

 With support

33.1 (224)

47.5 (546)

42.2 (770)

 Wheel chair

10.8 (73)

11.2 (129)

11.1 (202)

Pain intensity (NRS)

0.011

 0

53.0 (358)

46.0 (528)

48.5 (886)

 1

1.9 (13)

1.0 (12)

1.4 (25)

 2

3.1 (21)

4.0 (46)

3.7 (67)

 3

4.9 (33)

6.0 (69)

5.6 (102)

 4

6.2 (42)

5.9 (68)

6.0 (110)

 5

10.1 (68)

11.3 (130)

10.9 (198)

 6

3.8 (26)

4.9 (56)

4.5 (82)

 7

6.4 (43)

7.6 (87)

7.1 (130)

 8

6.4 (43)

6.4 (73)

6.4 (116)

 9

1.5 (10)

2.4 (27)

2.0 (37)

 10

2.8 (19)

4.5 (52)

3.9 (71)

 Mean score

2.58 (3.2)

3.07 (3.3)

2.89 (3.3)

0.002^a

Sleep disturbances^b

0.606

 Yes

57.7 (213)

59.4 (422)

58.8 (635)

 No

42.3 (156)

40.6 (289)

41.2 (445)

Leg ulcer diagnosis

0.002

 Venous

37.4 (252)

45.1 (511)

42.2 (763)

 Arterial

11.4 (77)

9.4 (107)

10.2 (184)

 Venous-arterial

7.9 (53)

9.6 (109)

9.0 (162)

 Other types

43.2 (291)

35.9 (407)

38.6 (698)

Number of wounds

0.673

 One

90.2 (610)

90.9 (1045)

90.7 (1655)

 Bilateral

9.8 (66)

9.1 (104)

9.3 (170)