Table-1.Baseline and operative characteristics(2nd-arterial conduit vs SITA+Vein)
Baseline Characteristics Before matching Before matching After matching After matching
2nd-arterial conduit (n=717) SITA+Vein (n=7140)
p
2nd-arterial conduit (n=695) SITA+Vein (n=695)
p
SMD
Age(y) 57.9±8.54 65±8.42 <0.001 58.4±8.17 58.3±8.54 0.88 0.01
Age>70 54(7.5) 2071(29.0) <0.001 54(7.7) 68(9.7) 0.18
Female gender 126(17.5) 1875(26.2) <0.001 125(17.9) 133(19.1) 0.58 -0.04
PVD 86(11.9) 1189(16.6) 0.001 86(12.3) 97(13.9) 0.38 -0.07
BMI(kg/m2) 28.2±3.9 28.5±6.8 0.22 28.2±3.94 28.3±4.32 0.58 -0.02
BMI≥30 220(30.6) 2400(33.6) 0.11 215(30.9) 236(33.9) 0.22
History of CAEs 14(1.95) 333(4.6) <0.001 14(2.0) 12(1.7) 0.69 0.086
Diabetes 159(22.1) 2665(37.3) <0.001 157(22.5) 167(24.0) 0.52 -0.04
MI(<90 days) 193(26.9) 2489(34.8) <0.001 189(27.1) 174(25.0) 0.35 0.06
NYHA III-IV 55(7.6) 458(6.41) 0.19 53(7.6) 61(8.7) 0.43 -0.08
CLD 36(5.0) 437(6.12) 0.23 36(5.1) 36(5.1) >0.99 0.000
PCI 194(27.0) 1623(22.7) 0.008 183(26.3) 188(27.0) 0.76 -0.02
Active smokers 197(27.4) 1434(20.0) <0.001 191(27.4) 169(24.3) 0.17 0.09
Hypertension 620(86.4) 6043(84.6) 0.19 599(86.1) 601(86.4) 0.87 -0.01
Hyperlipidemia 310(43.2) 2640(36.9) 0.001 295(42.4) 279(40.1) 0.38 0.05
Moderate renal impairment 397(55.3) 4273(59.8) 0.02 389(55.9) 372(53.5) 0.35 0.05
Severe renal impairment 32(4.46) 889(12.4) <0.001 32(4.6) 38(5.4) 0.46 -0.099
EF<50% 171(23.8) 2295(32.1) <0.001 169(24.3) 167(24.0) 0.9 0.008
LM 301(41.9) 2166(30.3) <0.001 288(41.4) 282(40.5) 0.74 0.01
Emergent/Urgent 298(41.5) 2611(36.5) 0.008 285(41.0) 287(41.2) 0.91 -0.006
Operative Characteristics
OPCAB 330(46.0) 3095(43.3) 0.16 326(46.9) 257(36.9) <0.001
Number of grafts 2.4±0.59 2.7±0.66 <0.001 2.4±0.58 2.7±0.68 <0.001
Incomplete revascularization 183(25.5) 1713(23.9) 0.36 180(25.8) 139(20.0) 0.008