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Table 5 Number and percentages of responses on the Negative QOL item at 4 months (Global Transition item) for different response categories, with effect sizes, mean score changes by response category, and ANOVA tests for linear trend for the ThyPRO

From: Psychometric properties of the thyroid-specific quality of life questionnaire ThyPRO in Singaporean patients with Graves’ disease

Measure

Not at all

A little

Some

Quite a bit

Very much

Negative QOL 4 months later, Count (%) of responses

20 (47)

16 (37)

1 (2)

3 (7)

3 (7)

Mean change (SD)

−21 (27)

−8 (33)

−50 (0)

0 (25)

33 (58)

Effect size #

−13

reference

−42

8

41

P-value

0.212

N.A.

0.203

0.696

0.045

  1. Legend: %- Percentage; SD Standard deviation; Effect size takes “A little” as the reference
  2. N.A. Not applicable