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Table 5 Known-Groups Validity of the DID-EQ: ANOVA by Item #1 of the DTSQ

From: Psychometric evaluation of the Diabetes Injection Device Experience Questionnaire (DID-EQ) and Diabetes Injection Device Preference Questionnaire (DID-PQ)

 

DTSQ Item #1: How satisfied are you with your current treatment?a

 

DID-EQ

6 (n = 67) Mean (SD)

5 (n = 67) Mean (SD)

4 (n = 27) Mean (SD)

<=3 (n = 13) Mean (SD)

Pairwise Comparisonp valuesb

Device Characteristics

89.1 (12.9)

82.4 (14.0)

73.5 (16.5)

72.5 (18.5)

A: 0.19; B: 0.0001; C: 0.0035; D: 0.13; E: 0.22; F: 0.10

Global Items

 Satisfaction

3.78 (0.42)

3.40 (0.74)

3.26 (0.59)

2.85 (0.69)

A: 0.02; B: 0.0018; C: < 0.0001; D: 0.82; E: 0.03; F: 0.21

 Ease of Use

3.76 (0.46)

3.60 (0.55)

3.19 (0.62)

2.92 (0.64)

A: 0.56; B: 0.0001; C: < 0.0001 D: 0.03; E: 0.0024; F: 0.55

 Convenience

3.76 (0.46)

3.49 (0.56)

3.22 (0.58)

3.00 (0.58)

A: 0.099; B: 0.0002; C: < 0.0001 D: 0.28; E: 0.046; F: 0.66

  1. a Higher DTSQ scores indicate greater satisfaction
  2. bANOVA with Scheffe’s post-hoc comparisons of DID-EQ scores between subgroups of participants categorized based on scores on DTSQ item #1 (A: DTSQ item #1 score of 6 vs. 5; B: 6 vs. 4; C: 6 vs. <=3; D: 5 vs. 4; E: 5 vs. <=3; F: 4 vs. <=3)