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Table 3 Changes in BrQ overall scores among patients defined as improved, stable and deteriorated from baseline to re-evaluation during the follow up period, at least 2 years after the initiation of brace treatment on the basis of their curve change. Effect sizes were calculated by dividing the change in mean score by the standard deviation of the first mean score of the BrQ.

From: Development and preliminary validation of Brace Questionnaire (BrQ): a new instrument for measuring quality of life of brace treated scoliotics

Subgroups according to the curve change

n

First BrQ overall score mean

First Standard Deviation (total)

Follow up BrQ overall score mean

Mean score change

Effect Size

Improved

10

64

14.77

86

22

1.49

Stable

13

61

14.77

71

10

0.68

Increased

5

60

14.77

66

6

0.41