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Table 2 Demographic, co-morbidity and high-risk foot complication data for each patient cohort (n (%) unless otherwise stated)

From: The Queensland high risk foot form (QHRFF) – is it a reliable and valid clinical research tool for foot disease?

 

Criterion measure

Criterion validity* & inter-rater reliability*

Intra-rater reliability

p Value

General demographics

    

Numbers

32

43

19

 

Male

25 (78%)

37 (86%)

17 (90%)

0.501

Age, mean (SD) (years)#

69 (13)

68 (13)

70 (15)

0.826

Age range (years)

48 – 90

36 – 89

42 – 90

 

Indigenous

1 (3%)

0 (0%)

1 (5%)

NA

Health professionals attending (in the past week)

Podiatrist

32 (100%)

43 (100%)

19 (100%)

1.000

GP

2 (6%)

10 (23%)

2 (11%)

0.103

Nurse

3 (9%)

12 (28%)

4 (21%)

0.141

Orthotist

0

0

0

NA

Physician

2 (6%)

1 (2%)

1 (5%)

NA

Surgeon

1 (3%)

3 (7%)

0

NA

Other

0

0

0

NA

Medical co-morbidity history

    

Diabetes (type 1 or 2)

28 (88%)

35 (81%)

16 (84%)

0.384

Type 2 diabetes

28 (88%)

31 (72%)

14 (74%)

0.256

Diabetes duration (years)#

12 (7)

23 (11)

20 (14)

0.001**

Recent BGLs > 15 mmol/L

5 (16%)

4 (9%)

5 (26%)

0.220

HbA1c (SD)#

9.2 (3.5)

8.1 (1.6)

8.4 (2.7)

0.450

Hypertension

28 (88%)

30 (70%)

11 (58%)

0.053

Dyslipidaemia

23 (72%)

25 (58%)

9 (47%)

0.201

Smoker

5 (16%)

11 (26%)

3 (16%)

0.492

CVD

21 (66%)

21 (49%)

9 (47%)

0.281

CKD

5 (16%)

13 (30%)

5 (26%)

0.339

ESRF

0

1 (2%)

0

NA

Other (non-listed)

29 (91%)

36 (84%)

11 (58%)

0.013**

High-risk history

  

Neuropathy

31 (97%)

37 (86%)

18 (95%)

0.214

PAD

14 (44%)

21 (49%)

8 (42%)

0.853

Previous foot ulcer

27 (84%)

37 (86%)

17 (90%)

0.878

Current foot ulcer

32 (100%)

42 (98%)

19 (100%)

0.549

New foot ulcer

21 (66%)

42 (98%)

19 (100%)

≤ 0.001**

Previous amputation

16 (50%)

17 (40%)

7 (37%)

0.566

Clinical diagnoses of high-risk factors

Neuropathy

31 (97%)

38 (88%)

19 (100%)

0.146

Any PAD

14 (44%)

22 (51%)

8 (42%)

0.735

Acute Charcot

1 (3%)

1 (2%)

0

NA

Foot deformity

26 (81%)

33 (77%)

17 (90%)

0.501

Acute risk classification

32 (100%)

42 (98%)

19 (100%)

0.549

Clinical diagnoses of foot disease

Ulcer type: neuropathic

14 (44%)

14 (33%)

8 (42%)

0.572

Ulcer type: neuroischaemic

9 (28%)

16 (37%)

8 (42%)

0.555

Ulcer type: ischaemic

0

3 (7%)

1 (5%)

NA

Ulcer type: other

9 (28%)

9 (21%)

2 (11%)

0.339

Combined surface area (mm2)#

122 (191)

352 (899)

379 (1436)

0.469

Any clinical infection

6 (19%)

14 (33%)

2 (11%)

0.125

UTWCS (Grade 1A)

13 (41%)

14 (33%)

7 (37%)

0.770

Deep ulcer (Grade 2 or 3)^

8 (25%)

6 (14%)

2 (11%)

0.394

  1. * = Same participants used for three tests.
  2. ** = Statistically significant (p < 0.05).
  3. # = Measure in mean (standard deviation).
  4. ^ = Deep ulcer determined from the UTWCS Grade item.
  5. NA = Not applicable to test as the assumption of Chi-squared test is violated as 2 cells had expected counts of < 5.
  6. GP = General Practitioner; CVD = Cardiovascular Disease; ESRF = End Stage Renal Failure; PAD = Peripheral Arterial Disease; UTWCS = University of Texas Wound Classification System.