In contrast, smoking reduce the risk of PONV (0.138, (0.05 - 0.35), p<0.01) and there are no relation between the duration of surgery and anesthesia with PONV (1.73, (0.77 - 3.87); p>0.05) and (1.81; (0.94 - 3.62); p>0.05). Conclusions: The incidence of PNOV within 24h postoperative was 39.33%.