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. Author manuscript; available in PMC: 2015 Nov 6.
Published in final edited form as: J Am Coll Surg. 2013 Nov 27;218(3):336–344. doi: 10.1016/j.jamcollsurg.2013.11.018

Table 5.

Subgroup Analysis: Demographics and Clinical Characteristics of Patients Undergoing Elective Colorectal Resection with Prolonged Length of Stay

Skin preparation agent
Characteristic CHG (n = 141) CHG+IPA (n = 323) PVI (n = 87) IPC+IPA (n = 47) p Value
Age, y, mean (±SD) 64.9 (14.8) 63.9 (16.3) 63.6 (15.4) 66.9 (14.2) 0.41
Male, % 47.5 50.2 44.8 44.4 0.08
Comorbidity Index, % 0.02
 0 61.0 60.1 67.8 57.8
 1 22.0 27.2 20.7 35.6
 2 12.8 8.4 5.8 4.4
 3+ 4.3 4.3 5.8 2.2
ASA Class, % 0.24
 I 2.9 2.9 0 0
 II 33.6 32.4 43.0 24.4
 III 55.7 54.2 50.0 68.9
 IV+ 7.8 11.2 7.0 6.7
BMI, kg/m2, mean (SD) 28.1 (7.0) 28.4 (6.8) 26.6 (5.7) 28.2 (6.9) 0.15
Current smoker, % 19.1 23.9 25.3 26.7 0.04
Serum albumin <3, % 39.0 21.4 33.3 28.9 0.01
Current steroid use, % 7.1 3.7 6.9 8.9 0.26
Surgical approach, % 0.43
 Laparoscopic 7.8 7.5 4.6 2.2
 Laparoscopic/converted 6.4 5.9 1.2 4.4
 Laparoscopic/hand 10.6 8.0 5.8 15.6
 Open 73.1 75.8 88.5 77.8
 Laparoscopic robotic 1.4 1.9 0 0
 Laparoscopic robotic converted 0.7 0.9 0 0
Bowel prep used, % 49.1 48.9 54.7 42.2 0.27
Perioperative hyperglycemia, % 80.1 80.2 77.0 84.4 0.79
Perioperative hypothermia, % 8.5 8.7 5.8 2.2 0.41
Procedure duration, min, mean (SD) 165.0 (91.5) 193.0 (110.5) 158.6 (106.5) 145.8 (69.6) 0.03
Length of stay, d, mean (SD) 16.4 (8.2) 16.4 (8.5) 16.8 (10.6) 16.6 (8.5) 0.82

CHG, chlorhexidine; CHG+IPA, chlorhexidine in isopropyl alcohol; PVI, povidone-iodine; IPC+IPA, povacrylx-iodine in isopropyl alcohol; IPA, isopropyl alcohol.