Table 2. Outcome Measures by Treatment Group
Point estimates and 95% confidence intervals of odds ratios and NNT (numbers needed to treat) for outcomes are computed relative to group 3 controls.
NNT = number of patients needed to be treated to eliminate undesired outcome in one patient; negative numbers for NNT indicate harmful effects of treatment. PONV = postoperative nausea, vomiting, or rescue therapy administration.
*P < 0.05;
†P < 0.005;
‡P < 0.001.