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Table 2 Scale descriptive and internal consistency for PedsQL™ 3.0 Diabetes Module child self-reports and parent proxy-reports

From: Italian translation, cultural adaptation and validation of the PedsQL™ 3.0 Diabetes Module questionnaire in children with type 1 diabetes and their parents

    95%C.I.     
Subscale N. of items N. Mean Lower limit Upper limit S.D. Min. Max. SMC Cronbach’s α
Child self-report           
Diabetes self symptoms 11 169 64.69 62.31 67.06 15.65 9.09 100 0.28 0.61
Treatment barriers 4 169 79.22 77.11 81.32 20.02 0.00 100 0.23 0.64
Treatment adherence 7 169 82.35 80.25 84.46 13.89 42.86 100 0.20 0.65
Worry 3 169 66.91 63.47 70.36 22.70 0.00 100 0.18 0.67
Communicationn 3 169 73.42 69.64 77.21 24.93 0.00 100 0.20 0.65
Total score 28 169 73.32 71.33 75.30 13.07 20.79 97.24   0.69
Parent proxy report           
Diabetes symptoms 11 100 67.75 64.59 70.91 15.92 20.46 100 0.4146 0.65
Treatment barriers 4 100 71.19 67.21 75.14 20.06 0 100 0.5107 0.64
Treatment adherence 7 100 80.03 77.24 82.82 14.05 28.57 100 0.2368 0.71
Worry 3 100 66.58 61.43 71.74 25.99 0 100 0.0976 0.78
Communication 3 100 74.25 96.57 78.93 23.60 0 100 0.3748 0.69
Total score 28 100 71.96 96.21 74.71 13.87 27.19 95.68   0.74
  1. N.: number of participants; S.D.: standard deviation; SMC: Squared Multiple Correlation (Index); 95% C.I.: 95% confidence intervals.