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Table 4 The MCID value of MTQ determined by ES

From: Minimal clinically important difference for the Mandarin version of the Tinnitus Questionnaire determined via anchor-based and distribution-based methods

Subjective criteria

n

SDbaseline

ES = 0.2

ES = 0.5

ES = 0.8

Improvement

Self-report change impression

Much better

24

16.42

3.28

8.21

13.14

ΔVAS

≥ 1

71

2.18

3.06

1.09

12.23

Deterioration

Self-report change impression

Much worse

9

15.29

0.44

7.64

1.74

ΔVAS

≤ − 1

22

15.29

3.06

7.64

12.23

Change

Self-report change impression

 

33

16.13

3.23

8.07

12.91

ΔVAS

 

93

12.59

2.52

6.29

10.07

  1. MCID, minimal clinically important difference; ES, effect size