Skip to main content

Table 1 Descriptive data for all patient cohorts used to establish validity and reliability of the survey tool.

From: A questionnaire for determining prevalence of diabetes related foot disease (Q-DFD): construction and validation

Sample
  A B C1 C2 C3 D
Total participants 31 21 25 13 12 30
Mean Age (years) 64.0
(range 45-80)
67.1
(range 45-83)
64.7
(range 45-77)
68.0 (range57-77) 61.0 (range 45-76)  
Mean diabetes
Duration (years)
10.2
(range 1-55)
13.7
(range 1-36)
19.9
(range 1-54)
25.7
(range 5-54)
13.5 (range 2-37)  
Male 15 (48.0%) 10 (48.0%) 15 (60.0%) 10 (77.0%) 5 (42.0%) 17 (57.0%)
Female 16 (52.0%) 11 (52.0%) 10 (40.0%) 3 (23.0%) 7 (58.0%) 13 (43.0%)
  1. C1 - clinic based cohort, survey Vs medical record, C2 - clinic based cohort, survey Vs medical record, with known foot complications
  2. C3 - clinic based cohort, survey Vs medical record, with no known foot complications
  3. Sample A was used to determine face validity, Sample B was used to determine criterion validity and
  4. Sample C was used to determine construct validity. Sample D was used to establish test re-test and inter and intrarater reliability.