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Table 1 Median, ceiling effect, KS results, and interquartile range of five CHAQ scoring methods.

From: Exploring the ceiling effect of the revised Childhood Health Assessment Questionnaire in a European patient sample

 

Scoring method

Median (range)

Ceiling effect (%)

KS-statistic

P-value

IQR

Cat I

Chaq30orig

0.81 (0–2.13)

20.8*

0.87

0.43

1.38

 

Chaq30item

0.36 (0–1.04)

20.8*

0.87

0.50

0.43

 

Chaq38item

0.38 (0–1.26)

8.3

0.86

0.45

0.54

Cat II

Chaq30item

-0.24 (-1.26–0.40)

0

0.84

0.49

0.48

 

Chaq38item

-0.34 (-1.26–0.42)

0

0.69

0.73

0.64