Total score and subscale scores of the 3.0 DM
mean ± SD

Mean score

Floor effect (%)

Ceiling effect (%)

Missing data (%)

CSR

PPR

CSR

PPR

CSR

PPR

CSR

PPR

Total score

71.38
± 12.71

68.91
± 11.84

1.91

2.08

37.0

36.10

1.10

0.61

Diabetes symptoms

63.77 ± 13.56

62.45 ± 12.57

1.74

1.82

23.62

22.91

0.47

0.35

Treatment barriers 

69.51 ± 19.94

65.33 ± 20.12

3.10

3.70

34.48

33.98

0.00

0.53

Treatment adherence

82.53 ± 14.46

79.90 ± 14.58

1.07

1.13

56.46

55.49

1.56

1.16

Worry

69.17
± 20.50

62.78 ± 21.36

2.77

3.17

32.83

31.70

0.67

0.47

Communication

77.36 ± 22.43

76.77 ± 22.53

2.10

2.03

48.17

46.50

4.23

0.57

Table 1: Subscales descriptive statistics, floor and ceiling effects, missing data of the child self-report (n = 355) and parent proxy-report (n = 328) in the PedsQL Diabetes Module.