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Table 1 Demographic characteristics of MABG vs SABG cohorts post-PSM

From: Multiple arterial conduits for multi-vessel coronary artery bypass grafting in patients with mild to moderate left ventricular systolic dysfunction: a multicenter retrospective study

Characteristic Overall
(n = 919)
MABG
(n = 243)
SABG
(n = 676)
SMD
Age (years) 64.2 ± 9.0 63.2 ± 9.1 64.5 ± 8.9 0.09
BMI (kg/m2) 25.5 ± 3.1 25.7 ± 2.8 25.4 ± 3.2 0.1
eGFR (ml/min/1.73m2) 92.0 ± 26.3 93.3 ± 24.6 91.6 ± 26.9 0.06
LVEF (%) 46.0 (42.0, 49.0) 46.0 (42.0, 50.0) 47.0 (42.0, 49.0) 0.09
LVEF     0.05
 30–40% 179 (19.5) 44 (18.1) 135 (20.0)  
 41–52% 740 (80.5) 199 (81.9) 541 (80.0)  
LVEDV (mm) 53.5 ± 6.9 53.4 ± 6.7 53.5 ± 7.1 0.01
Male 750 (81.6) 198 (81.5) 552 (81.7) 0.01
Smoker 298 (32.4) 76 (31.3) 222 (32.8) 0.03
DM     0.02
 No history 610 (66.4) 163 (67.1) 447 (66.1)  
 NIDDM 226 (24.6) 58 (23.9) 168 (24.9)  
 IDDM 83 (9.0) 22 (9.1) 61 (9.0)  
Hypertension 539 (58.7) 140 (57.6) 399 (59.0) 0.03
Carotid stenosis > 50%     0.05
 None 763 (83.0) 200 (82.3) 563 (83.3)  
 Unilateral 63 (6.9) 19 (7.8) 44 (6.5)  
 Bilateral 93 (10.1) 24 (9.9) 69 (10.2)  
COPD 33 (3.6) 9 (3.7) 24 (3.6) 0.01
PVD 58 (6.3) 19 (7.8) 39 (5.8) 0.08
CVA 63 (6.9) 14 (5.8) 49 (7.2) 0.06
Dialysis 3 (0.3) 1 (0.4) 2 (0.3) 0.02
Prior MI 303 (33.0) 75 (30.9) 288 (33.7) 0.06
NYHA ≥3 531 (57.8) 134 (55.1) 397 (58.7) 0.07
Previous PCI 93 (10.1) 25 (10.3) 68 (10.1) 0.01
Mitral regurgitation     0.08
 None 676 (73.6) 184 (75.7) 492 (72.8)  
 Mild 200 (21.8) 50 (20.6) 150 (22.2)  
 Moderate 39 (4.2) 8 (3.3) 31 (4.6)  
 Severe 4 (0.4) 1 (0.4) 3 (0.4)  
No. vessel disease     0.04
 2 103 (11.2) 25 (10.3) 78 (11.5)  
 3 816 (88.8) 218 (89.7) 598 (88.5)  
Left main disease 269 (29.3) 61 (25.1) 196 (29.0) 0.08
Off-pump CABG 358 (39.0) 88 (36.2) 270 (39.9) 0.08
  1. The variables are presented as mean ± standard deviation or median (IQR) or number (%). MABG multiple arterial bypass grafting, SABG single arterial bypass grafting, PSM propensity score matching, SMD standardized mean differences, BMI body mass index, eGFR estimated glomerular filtration (calculated by Modification of Diet in Renal Disease equation), LVEF left ventricular ejection fraction, LVEDV left ventricular end-diastolic volume, DM diabetes mellitus, NIDDM non-insulin-dependent diabetes mellitus, IDDM insulin-dependent diabetes mellitus, COPD chronic obstructive pulmonary disease, PVD peripheral vascular disease, CVA cerebrovascular accident, MI myocardial infarction, NYHA New York Heart Association, PCI percutaneous coronary intervention, CABG coronary artery bypass grafting