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Table 5 Floor/ceiling effects of the subscale scores of the AS-20 and ASQE

From: Comparison of the Adult Strabismus Quality of Life Questionnaire (AS-20) with the Amblyopia and Strabismus Questionnaire (ASQE) among adults with strabismus who seek medical care in China

Subscale

Floor (%)

Ceiling (%)

AS-20

  

Psychosocial

10.16

24.11

Functional

8.78

33.32

ASQE

  

Fear of losing better eye

8.39

32.70

Distance estimation

3.26

62.70

Visual disorientation

1.75

49.23

Double vision

5.43

45.48

Social contact & appearance

21.46

15.21

  1. All values in italic type indicate floor effect or ceiling effect.
  2. (>20% of scores at the minimum/maximum score).