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Figure 2 | BMC Anesthesiology

Figure 2

From: Systematic review on the recurrence of postoperative nausea and vomiting after a first episode in the recovery room – implications for the treatment of PONV and related clinical trials

Figure 2

Rates of recurrent vomiting are given on the y-axis depending on the length of the observation period (x-axis). The area of the circles represent the number of patients included in the trial. Furthermore, light shading indicates studies with an Oxford (Jadad) score ≤ 3 whereas dark shading indicates a Jadad score of ≥ 4.

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BMC Anesthesiology

ISSN: 1471-2253

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