Table 3.

Factors associated with discharge the same date as operation in the University of Texas Health SDD enhanced recovery program (unpublished data)

Perioperative factors	% SDD	n (81)	p value
Patient factors
Male sex	78.4	37	0.099
Female sex	61.4	44
Age 65 or younger	75.0	44	0.213
Above age 65	62.2	37
Previous abdominal surgery	66.7	45	0.591
No previous abdominal surgery	72.2	36
On anticoagulation	66.7	6	0.892
No anticoagulation (excluding low dose aspirin)	64.2	75
BMI < 25	64.3	14	0.846
BMI > 25	65.5	29
BMI > 30	71.4	21
BMI > 35	76.5	17
Presence of DM	45.5	11	0.067
Absence of DM	72.9	70
Case factors
Incision after 9 AM	72.0	25	0.709
Incision before 9 AM	67.9	56
Finished before 12 PM	80.5	41	0.081
Finish after 12 PM	58.3	24
Finished after 1 PM	56.3	16
Blood loss < 50 mL	77.1	61	0.007
Blood loss > 50 mL	45.0	20
Total IVF < 1 L	86.2	29	0.013
Total IVF > 1 L	59.6	52
Operative duration < 180 min	85.0	40	0.002
Operative duration < 180 min	53.7	41
ASA 2	74.2	31	0.515
ASA 3	67.4	49
Wound class 2	70.4	71	0.755
Wound class 3	50.0	2
Wound class 4	62.5	8
Right colectomy	66.7	30	0.46
Left/sigmoid/LAR colectomy	74.5	47
Malignant indication	66.7	36	0.667
Benign indication	71.1	45
Any narcotics (including operation)	56.8	37	0.027
No narcotics (including operation)	79.6	44
Hydromorphone 0.6 mg or less	77.2	57	0.016
Greater than hydromorphone 0.6 mg	50.0	24

Bold indicate statistically significant p values (p < 0.05)