Table 1.

Actual preoperative fasting time (hours) according to the type of the surgeries in 3,715 patients

Region or organ	N	Median (IQR)	Range
Gastrointestinal	1,987	12 (5)	2–216
Abdominal wall*	589	13 (7)	2–27
Head and neck	298	9 (8)	2–48
Gynecology	253	11 (5)	2–21
Urology	177	11 (9)	2–30
Soft tissue**	128	9 (8)	2–20
Vascular	44	16 (4)	2–19
Pulmonary	14	17 (6)	2–20
Miscellaneous	225	12 (5)	2–28

Notes:

^*Herniorrhaphies

^**muscle and skin resections.

Abbreviation: IQR, inter-quartile range.