Table 1 Descriptive statistics, univariate regression, and multivariate regression of investigated variables in relation to daily wearing time

Demographics

Gender

 Male

72 (44)

7.9 (5.9)

 Female

28 (17)

9.4 (6.2)

2.03

0.21

0.100^a

0.12

0.356

Age (years)

68.0 (7.4)

100 (61)

8.3 (6.1)

0.13

0.22

0.083^a

0.13

0.322

BMI

30.5 (5.7)

100 (61)

8.3 (6.1)

-0.14

-0.19

0.145^a

-0.15

0.242

Education level

 Low

49 (30)

9.6 (5.8)

 Medium/High

51 (31)

7.1 (6.0)

-2.95

-0.34

0.007^a

-0.19

0.138

Working situation

 Paid work

28 (17)

7.8 (6.3)

 No paid work

72 (44)

8.5 (6.0)

0.88

0.09

0.480

Living situation

 Living with someone

71 (43)

8.2 (6.1)

 Living alone

30 (18)

8.5 (5.8)

0.11

0.01

0.926

Self-reliant

 Yes

16 (10)

8.3 (5.6)

 No

84 (51)

8.3 (6.1)

-0.37

-0.03

0.809

Dependence on assistive device

 Yes

34 (21)

8.2 (6.1)

 No

66 (40)

8.4 (6.0)

0.40

0.04

0.735

Disease characteristics

Diabetes type

 Type 1

11 (7)

7.8 (6.3)

 Type 2

89 (54)

8.4 (6.0)

0.44

0.03

0.801

Diabetes duration (years)

17.3 (11.4)

0.05

0.14

0.303

IWGDF risk profile

 IWGDF risk 2

44 (27)

8.5 (6.1)

 IWGDF risk 3

56 (34)

8.1 (6.0)

-0.82

-0.10

0.465

Footwear usability

Walking ability

 < 1000 m

70 (35)

8.1 (6.0)

 ≥ 1000 m

30 (15)

8.8 (6.3)

0.41

0.04

0.762

Perceived walking change by OF

 Improved by orthopaedic footwear

52 (26)

9.2 (5.7)

 Not improved by orthopaedic footwear

48 (24)

7.2 (6.4)

-1.56

-0.18

0.207

Shoe fit^c

80.7 (18.4)

82 (50)

8.3 (6.1)

0.03

0.11

0.461

Shoe walking^c

78.6 (24.5)

80 (49)

8.3 (6.1)

0.04

0.24

0.093^a

-0.18

0.283

Shoe weight^c

56.5 (22.0)

79 (48)

8.3 (6.1)

-0.05

-0.25

0.086^a

-0.02

0.884

Donning and doffing^c

68.0 (26.3)

79 (48)

8.4 (6.1)

0.005

0.03

0.852

Aesthetic^c

75.9 (21.0)

80 (49)

8.3 (6.1)

 < 0.001

0.01

0.975

Aesthetic perceived by others

84 (51)

 Not attractive

43 (22)

7.8 (5.8)

 Attractive

57 (29)

8.7 (6.3)

0.80

0.09

0.514

Number of orthopaedic footwear pairs

2.9 (1.1)

100 (61)

8.3 (6.1)

0.65

0.17

0.204

Footwear possession

 First-ever pair

13.1 (8)

9.3 (5.8)

 Subsequent pair

86.9 (53)

8.2 (6.1)

-0.47

-0.04

0.776

Owns regular off-the-shelf shoes

 Yes

20 (12)

6.2 (5.6)

 No

80 (49)

8.9 (6.0)

2.34

0.22

0.093^a

0.15

0.238

Satisfaction with my wear of orthopaedic footwear^c

80.1 (20.9)

82 (50)

8.3 (6.1)

0.11

0.52

 < 0.001^a

0.55

 < 0.001^b

Orthopaedic footwear wearing goal reached

 Yes

81 (39)

8.8 (6.1)

 No

19 (9)

6.1 (5.6)

-1.85

-0.17

0.264