Comparison 5. Hypnotics versus placebo.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Total sleep time (after first and second the night shift) | 1 | 28 | Mean Difference (IV, Fixed, 95% CI) | 44.0 [‐22.67, 110.67] |