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. 2021 Sep 6;18(17):9405. doi: 10.3390/ijerph18179405

Table 6.

Test-retest reliability intra-class correlation coefficient (n = 30).

Item Question ICC [2,k] (95% CI)
ESUQ 1 I think that I would like to use this self-management booklet frequently. 0.80 (0.57–0.90)
ESUQ 2 I found the self-management booklet unnecessarily complex. 0.66 (0.29–0.84)
ESUQ 3 I thought the self-management booklet was easy to use. 0.58 (0.11–0.80)
ESUQ 4 I think I would need the support of a technical person to be able to use the self-management booklet. 0.73 (0.43–0.87)
ESUQ 5 I found that the contents of the self-management booklet were related to each other (Example: Cardiovascular risk factors → Blood test results → Weight management → Smoking habit → Home blood pressure monitoring/Self blood sugar monitoring → List of medication) 0.76 (0.49–0.88)
ESUQ 6 I found that there was inconsistency in the content of the self-management booklet. 0.71 (0.40–0.86)
ESUQ 7 I think the self-management booklet is easy to learn. 0.88 (0.75–0.94)
ESUQ 8 I found the self-management booklet is difficult to use. 0.80 (0.58–0.90)
ESUQ 9 I felt confident to use the self-management booklet. 0.57 (0.09–0.80)
ESUQ 10 I needed to learn a lot of things before I could get going with the self-management booklet. 0.67 (0.31–0.84)
Overall value 0.85