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Table 3 Subgroup analysis based on sleep disturbance type

From: The association between sleep disturbances and suicidal behaviors in patients with psychiatric diagnoses: a systematic review and meta-analysis

Sleep disturbance type

Studies ( n)

OR

95% CI

P value

I2

Insomnia

11

2.66

1.74, 4.07

<0.001

75.4%

Hypersomnia

3

1.91

0.60, 6.06

0.27

85.8%

Parasomnia

6

4.69

2.58, 8.51

<0.001

0.0%

Sleep-related breathing disorder

1

2.56

1.91, 3.43

<0.001

n/a

Other/unclear

7

4.16

1.96, 8.81

<0.001

81.7%

  1. Sleep-related breathing disorder (SBD): only one study (Krakow, 2000) reported SBD and no objective test was used to confirm the diagnosis.