Risk factors for postoperative nausea and vomiting after the removal of impacted third molars: a cross-sectional study

Table 4 Multivariate analysis of factors affecting PONV

Variable	Odds ratio	95% CI	P value
Type of anesthesia (inhalation)	13.35	3.89–45.84	P < 0.001
Perioperative opioids (yes)	1.94	0.65–5.77	0.236
Sex (female)	1.01	0.32–3.07	0.991
Smoking (no)	0.4	0.26–23.48	0.432
Age (years)	1.01	0.97–1.06	0.527
BMI (Kg m⁻²)	0.84	0.71–1.01	0.057

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