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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: J Am Coll Surg. 2011 Aug 25;213(5):596–603.e1. doi: 10.1016/j.jamcollsurg.2011.07.015

Table 1.

Patient and Clinical Characteristics Stratified by Receipt of Perioperative Venous Thromboembolism Pharmacologic Prophylaxis

No perioperative VTE
pharmacologic
prophylaxis (n=1,826)
Perioperative VTE
pharmacologic
prophylaxis (n=2,369)
p Value
Age, y, mean ±
SD
61.4 ± 15.7 60.9 ± 15.4 0.33
Female sex, n (%) 991 (54.3) 1,277 (53.9) 0.81
Smoker, n (%) 285 (15.8) 391 (16.7) 0.47
BMI, n (%)
 <20
 20-25
 25-30
 >30

147 (8.8)
506 (30.1)
590 (35.1)
437 (26.0)

173 (7.8)
660 (29.8)
729 (32.9)
651 (29.4)
0.1
Hypertension, n
(%)
787 (43.2) 1,033 (43.6) 0.78
Coronary artery
disease, n (%)
211 (11.6) 258 (10.9) 0.47
Previous history of
DVT/PE, n (%)
52 (2.9%) 96 (4.1%) 0.04
Length of stay, d,
mean ± SD
7.6 ± 6.8 7.8 ± 9.8 0.66
OR time, min,
mean ± SD
156.0 ± 95.8 155.5 ± 92.1 0.85
Charlson
comorbididty
index, n (%)
 0
 1
 2
 3+
 Mean± SD



733 (40.1)
163 (8.9)
381 (20.9)
549 (30.1)
0.33±0.65



977 (41.2)
225 (9.5)
548 (23.1)
619 (26.1)
0.40±0.70







0.07
Indication for
procedure, n (%)
 Malignancy
 IBD


716 (39.2)
140 (7.7)


916 (38.7)
208 (8.9)


0.72
0.20
Application of
pneumatic
compressions, n
(%)
1,641 (91.0) 2,223 (94.4) <0.001

VTE, venous thromboembolism.