Table 2 Descriptive statistics of participants and nonparticipants

Mean age ±SD (y)

62.3 ±14.9

64.3 ±11.9

0.320

Sex (%)

413 valid cases

65 valid cases

Men

290 (70%)

44 (68%)

0.680*

Women

123 (30%)

21 (32%)

Amputation level (%)

409 valid cases

57 valid cases

Ankle disarticulation

5 (1%)

0 (0%)

0.235**

Trans-tibial amputation

234 (57%)

26 (46%)

Knee disarticulation

44 (11%)

7 (12%)

Trans-femoral amputation

116 (28%)

24 (42%)

Hip disarticulation

6 (2%)

0 (0%)

Rotationplasty

4 (1%)

0 (0%)

BMI (kg/m²)

386 valid cases

Mean BMI ±SD (95% CI)

27.5 ±5.0 (27.0−28.0)

BMI category (%)

386 valid cases

Underweight (<18.5 kg/m²)

7 (2%)

Normal weight (18.5-24.9 kg/m²)

119 (31%)

Overweight (25.0-29.9 kg/m²)

152 (39%)

Obesity (≥30 kg/m²)

108 (28%)

Body weight (%)

380 valid cases

<100 kg

330 (87%)

≥100 kg

50 (13%)

Median time since amputation (y, IQR)

400 valid cases

12.4 (3.2;30.7)

Reason for amputation (%)

409 valid cases

Trauma

159 (39%)

Diabetes and/or PAD

114 (28%)

Other

47 (12%)

Malignancy

40 (10%)

Infection

38 (9%)

Congenital

11 (3%)

Comorbidity (%)

405 valid cases

None

207 (51%)

Duration use of prosthesis (%)

405 valid cases

0-12 hours/day

142 (35%)

≥12 hours/day

263 (65%)

Walking distance outdoors (%)

404 valid cases

<500 meters/day

219 (54%)

≥500 meters/day

185 (46%)

Time walking with prosthesis indoors (%)

407 valid cases

<50%

105 (26%)

≥50%

302 (74%)

Use of walking aid (%)

407 valid cases

Yes

224 (55%)

Any skin problem in month prior to completing questionnaire (%)

413 valid cases

Yes

319 (77%)

Severe skin problem in month prior to completing questionnaire (%)^a

397 valid cases

Yes

125 (32%)

Skin problems in period >1 month prior to completing questionnaire (%)

400 valid cases

Yes

250 (63%)