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Table 3 Mean effect sizes and moderator analyses of yoga in women with sleep problems

From: The effect of yoga on sleep quality and insomnia in women with sleep problems: a systematic review and meta-analysis

Parameter

Results

Effect Size

(Hedges’g)

95%CI

P

Categorical Moderators

Outcome measurement tool

  PSQI

16

- 0.369

−0.559, − 0.178

0.002*

  Others

3

0.031

− 0.265, 0.328

 

Participant

  Breast cancer group

8

−0.148

−0.304, 0.009

0.001*

  Non-breast cancer group

11

−0.522

−0.821,-0.224

 

Participant

  Peri/postmenopausal

6

−0.084

−0.269, 0.102

0.003*

  Others

13

−0.419

−0.647,-0.191

 

Study region

  American

13

−0.123

−0.240,-0.006

< 0.001*

  Others

6

−0.844

−1.114,-0.573

 

Random sequence generation

  High/ unclear risk

3

−0.578

−1.272, 0.116

0.001*

  Low risk

16

−0.292

−0.473,-0.111

 

Continuous Moderators

Sample size

19

 

0.000,0.003

0.032*

Total length of class time

19

 

−0.021,-0.004

0.003*

Study duration

19

 

−0.03,0.087

0.20

Mean age

17

 

0.008,0.035

0.003*

  1. *P value <0.05 indicated a significant difference