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Table 2 Demographic and Pre/Intra-operative Characteristics (Unmatched)

From: Active clearance of chest tubes is associated with reduced postoperative complications and costs after cardiac surgery: a propensity matched analysis

Variable (mean n, %)All (n = 639)P0 (n = 302)P2(n = 337)p value
Age (years)66 ± 11.667 ± 10.265.1 ± 12.60.036
Gender (male)441 (69%)205 (68%)236 (70%)0.61
Weight (kg)89 ± 2088 ± 2090 ± 210.13
Diabetes274 (43%)118 (39%)156 (46%)0.078
Hypertension515 (81%)243 (80%)272 (81%)1
Prior PCI155 (24%)70 (23%)85 (25%)0.58
NYHA I329 (51%)162 (54%)167 (50%)0.3
NYHA II, III or IV310 (49%)140 (46%)170 (50%)0.3
Preop atrial arrhythmia131 (21%)59 (20%)72 (21%)0.62
Preop-IABP50 (7.8%)25 (8.3%)25 (7.4%)0.77
ADP inhibitors55 (8.6%)37 (12%)18 (5.3%)0.0027
Preop Aspirin621 (97%)300 (99%)321 (95%)0.0015
Preop Warfarin6 (0.94%)3 (0.99%)3 (0.89%)1
GIIb/IIIa7 (1.1%)7 (2.3%)0 (0%)0.0051
First Time Surgery601 (94%)284 (94%)317 (94%)1
Reoperation38 (5.9%)18 (6%)20 (5.9%)1
Operative Status (Elective)269 (42%)130 (43%)139 (41%)0.69
Opertive Status (Non Elective)370 (58%)172 (57%)198 (59%)0.69
CABG359 (56%)167 (55%)192 (57%)0.69
Valve79 (12%)49 (16%)30 (8.9%)0.0056
CABG + Valve78 (12%)38 (13%)40 (12%)0.81
Other123 (19%)48 (16%)75 (22%)0.045
CPB (yes)295 (46%)140 (46%)155 (46%)0.94
  1. Abbreviations: Coronary Artery Bypass Surgery (CABG), Cardiopulmonary Bypass (CPB), Glycoprotein GIIb/IIIa inhibitor (GIIb/IIIa), Intra Aortic Balloon Pump (IABP), New York Heart Association (NYHA), Percutaneous Cardiac Interventions (PCI)