Summary of the Therapeutic Outcomes based on Different Health Problems and Treatment Durations.

<p><b>1:</b> For studies reporting multiple main outcomes, at least one “++” were identified</p><p><b>2</b>: For studies reporting multiple main outcomes, no “++” but at least one “+” were identified</p><p><b>3</b>: “0” for all main outcome(s)</p><p><b>4</b>: “−” or “− −”for all main outcome(s); MI: Myocardial infarction</p><p># Twenty studies for postoperative nausea and vomiting and one study for intra-operative nausea and vomiting</p><p>## Perioperative/prehospital pain was observed in 5 studies, but comparison between groups was not performed (or not clearly reported) in 1 study</p><p>### Motion sickness was observed in 3 studies, but comparison between groups was not performed (or not clearly reported) in 2 studies</p><p>#### Acupressure durations were less than 1 hour in 14 studies, but comparison between groups was not performed (or not clearly reported) in 2 studies</p><p>Summary of the Therapeutic Outcomes based on Different Health Problems and Treatment Durations.