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Table 2 Descriptive data for the Malocclusion Impact Questionnaire [MIQ] and the Child Perceptions Questionnaire [CPQ11–14]

From: Cross-cultural adaptation and validation in spanish of the malocclusion impact questionnaire (MIQ)

Scale

Number of items

Observed range

Median [IQR]

Mean [SD]

Percent floor [%]

Percent ceiling [%]

Cronbach’s alpha

MIQ total score

17

0–31

7 [8]

8.3 [6.0]

4.1

0.0

0.85

CPQ11–14 total score

37

2–96

30

32.8 [17.9]

0.0

0.0

0.89

Oral symptoms

6

0–21

7 [6]

7.1 [3.7]

2.3

0.0

0.62

Functional limitations

9

0–23

7 [8]

8.3 [5.7]

3.2

0.0

0.74

Emotional well-being

9

0–32

8 [9]

8.7 [6.1]

4.6

0.0

0.80

Social well-being

13

0–36

7 [10]

8.7 [7.0]

6.4

0.0

0.78

  1. Floor effect: percentage of patients with minimum score; Ceiling effect: percentage of patients with maximum score
  2. IQR Interquartile range, SD standard deviation