Calculate the Number Needed to Treat (NNT): In a study evalu…
Calculate the Number Needed to Treat (NNT): In a study evaluating the effect of an antiemetic, the incidence of postoperative nausea was 10% in the group receiving the antiemetic and 25% in the placebo group. Calculate the NNT to prevent one additional case of nausea. Round to a whole number only.