From: Postoperative and postdischarge nausea and vomiting following ambulatory eye, head, and neck surgeries: a retrospective cohort study comparing incidence and associated factors
PDNV
No PDNV
Row totals
PONV
166
1333
1499 (14%)
No PONV
317
8415
8732 (86%)
Column totals
483 (4%)
9748 (96%)
10,231