Table 3 Baseline-three months post-cognitive behavioural therapy follow-up insomnia severity index scores for each insomnia subtype group.

From: Acceptability, tolerability, and potential efficacy of cognitive behavioural therapy for Insomnia Disorder subtypes defined by polysomnography: A retrospective cohort study

 

Baseline

Three months post-CBT follow up

 

n

\(\bar{{\rm{x}}}\)

95%CI\(\bar{{\rm{x}}}\)

SD

95%CISD

n

\(\bar{{\rm{x}}}\)

95%CI\(\bar{{\rm{x}}}\)

SD

95%CISD

I-NSD

53

18.0

16.9, 19.1

4.0

3.3, 4.9

20

10.7

8.6, 12.9

4.6

3.5, 6.7

I-SSD

43

16.5

14.8, 18.2

5.5

4.6, 7.1

19

11.0

7.9, 14.0

6.3

4.8, 9.3

  1. Note: CBT: Cognitive behavioural therapy; CI: Confidence interval; I-NSD: Insomnia with normal sleep duration; I-SSD: Insomnia with short sleep duration; SD: Standard deviation.
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