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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Surgery. 2011 Oct;150(4):626–634. doi: 10.1016/j.surg.2011.07.056

Table 4.

Complications, Resource use, and Mortality by preoperative serum albumin groups

Outcome Variable Preoperative Serum Albumin P
≤2 g/dL
N = 20
2–3 g/dL
N = 204
3–4 g/dL
N = 1,361
>4 g/dL
N = 1,209
Any Complication 15 (75.0) 114 (55.9) 615 (45.2) 397 (32.8) <0.001
Deep Sternal Wound - - 12 (0.9) 6 (0.5) 0.38
Stroke/Neurocognitive - 12 (5.9) 52 (3.8) 28 (2.3) 0.02
Reoperation 1 (5.0) 9 (4.4) 15 (1.1) 15 (1.2) 0.001
Atrial Fibrillation 6 (30.0) 44 (21.6) 288 (21.2) 205 (17.0) 0.03
GI Complication - 9 (4.4) 35 (2.6) 14 (1.2) 0.01
Pneumonia 2 (10.0) 9 (4.4) 40 (2.9) 25 (2.1) 0.04
Prolonged Ventilation 6 (30.0) 32 (15.7) 108 (7.9) 70 (5.8) <0.001
Dialysis - 2 (1.0) 16 (1.2) 13 (1.1) 0.96
Renal Failure 1 (5.0) 32 (15.7) 77 (5.7) 44 (3.6) <0.001
Total ICU stay, hours 77.3 (91.9) 64.3 (100.9) 50.8 (105.6) 45.7 (64.4) 0.02
Length of stay, days 11.8 (8.8) 11.8 (12.0) 9.5 (9.8) 7.8 (5.2) <0.001
Surgery to Discharge, days 9.8 (8.3) 8.6 (10.8) 7.0 (9.4) 5.9 (4.7) <0.001
30D Readmission - 12 (5.9) 117 (8.6) 114 (9.4) 0.19
Major Complications 8 (40.0) 58 (28.4) 204 (15.0) 139 (11.5) <0.001
Mortality 1 (5.0) 11 (5.4) 48 (3.5) 24 (2.0) 0.02

Data shown as n (%) or mean (SD), as appropriate

TIA, Transient ischemic attack

MI, Myocardial infarction

GI, Gastrointestinal

MODS, Multi-organ dysfunction syndrome

ICU, Intensive care unit

30D, Thirty-day