Comparison 1. Melatonin versus placebo: Eastward flights.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Global jet‐lag ratings | 4 | 142 | Mean Difference (IV, Fixed, 95% CI) | ‐19.52 [‐28.13, ‐10.92] |