TABLE I.

Comparison of Colorectal Study Characteristics

	Study type	N	Surgery type	Restriction?		ERAS?	Significant difference?		Return of bowel function measured?
				Intraoperative	Postoperative		Morbidity	Length of stay
Lobo et al. [11]	Randomized trial	20	Elective colectomy	No	Yes	No	Yes	Yes	Yes
MacKay et al. [25]	Randomized trial	80	Elective colorectal surgery	Yes	Yes	No	No	No	No
Brandstrup et al. [12]	Randomized trial	141	Elective colorectal surgery	Yes	Yes	No	Yes	Not reported	Not reported
Nisanevich et al. [13]	Randomized trial	152	Elective abdominal surgery	Yes	No	No	Yes	Yes	Yes
Kabon et al. [26]	Randomized trial	253	Elective colectomy	Yes	No	No	No	No	No
Holte et al. [27]	Randomized trial	32	Elective colectomy	Yes	Yesa	Yes	Yes	No	No
Abraham-Nordling et al. [22]	Randomized trial	161	Elective colorectal surgery	Yes	Yes	Yes	Yes	No	No
Conway et al. [16]	Randomized trial	57	Elective abdominal surgery	Doppler	No	No	Yesb	No	No
Wakeling et al. [17]	Randomized trial	128	Elective colorectal surgery	Doppler	No	No	Yes	Yes	Yes
Noblett et al. [15]	Randomized trial	108	Elective colorectal surgery	Doppler	No	No	Yes	Yes	Yes

ERAS, Enhanced Recovery After Surgery protocol.

^aRecovery room only.

^bSignificant difference in critical care admissions (P = 0.02).