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| Author, Year | Study Design | Length of Follow-up | Sample Size, n (Intervention/Control) | Adverse Events, n (%)(Intervention/Control) | Effect Estimate (95% CI) |
|---|---|---|---|---|---|
| Graumlich et al, 2009 (34) | RCT | 1 month | 316/315 | 117 (37.0)/119 (37.8) | aDiff a 0.003 (−0.037 to 0.043) |
Abbreviations: aDiff, adjusted risk difference; CI, confidence interval; eTool, electronic tool; RCT, randomized controlled trial.
Adjusted with cluster correction.
