Table 1 Patient demographics and clinical factors with postoperative stroke incidence

Total

3084

3032

52

-

Factors

Age in Years

57.8 (± 12)

57.7 (± 12.1)

62.8 (± 11.2)

0.003*

Age Groups

< 55 Years

1040 [33.7%]

1031 [34%]

9 [17.3%]

0.012*

>=55 Years

2044 [66.3%]

2001 [66%]

43 [82.7%]

Gender

 Male

2340 [75.9%]

2300 [75.9%]

40 [76.9%]

0.859

 Female

744 [24.1%]

732 [24.1%]

12 [23.1%]

 Body Mass Index (BMI)

26.6 (± 4.6)

26.6 (± 4.6)

26.6 (± 5)

0.938

Obesity

 Non-Obese

1903 [61.7%]

1873 [61.8%]

30 [57.7%]

0.548

 Obese

1181 [38.3%]

1159 [38.2%]

22 [42.3%]

Factors

 Iso_CABG

2610 [84.6%]

2565 [84.6%]

45 [86.5%]

0.700

 Iso_AVR

171 [5.5%]

170 [5.6%]

1 [1.9%]

0.250

 Iso_MVR

332 [10.8%]

325 [10.7%]

7 [13.5%]

0.527

 AVR_CABG

36 [1.2%]

36 [1.2%]

0 [0%]

0.429

 MVR_CABG

40 [1.3%]

39 [1.3%]

1 [1.9%]

0.687

 MV_Repair

16 [0.5%]

16 [0.5%]

0 [0%]

0.599

 MV_Repair_CABG

10 [0.3%]

10 [0.3%]

0 [0%]

0.678

Comorbid Conditions

Dialysis

35 [1.1%]

34 [1.1%]

1 [1.9%]

0.588

Hypertension

2111 [68.5%]

2072 [68.3%]

39 [75%]

0.305

Immunosuppressive Treatment

1 [0%]

0 [0%]

1 [1.9%]

< 0.001*

Family History of CAD

1439 [46.7%]

1416 [46.7%]

23 [44.2%]

0.723

Diabetes

1564 [50.7%]

1543 [50.9%]

21 [40.4%]

0.133

Chronic Lung Disease

94 [3%]

91 [3%]

3 [5.8%]

0.250

Hematological Parameters

HCT

36.2 (± 7.5)

36.2 (± 7.5)

37.4 (± 6.5)

0.256

WBC

9.3 (± 3.4)

9.3 (± 3.3)

10.7 (± 5.1)

0.004*

Creatinine levels

1.1 (± 0.7)

1.1 (± 0.7)

1.3 (± 0.7)

0.051

Platelet Levels

202,000

(259000 − 153000)

202,000

(274000 − 153000)

198,000

(251000 − 135000)

Previous Cardiac History

Previous CV Interventions

242 [7.8%]

234 [7.7%]

8 [15.4%]

0.041*

Previous Coronary Artery Bypass

44 [1.4%]

44 [1.5%]

0 [0%]

0.382

Previous Valve

48 [1.6%]

46 [1.5%]

2 [3.8%]

0.179

Myocardial Infarction

1313 [42.6%]

1288 [42.5%]

25 [48.1%]

0.418

Time since last MI (Years)

6.9 (± 7.7)

6.9 (± 7.6)

9.2 (± 9.3)

0.034*

Congestive Heart Failure (CHF)

231 [7.5%]

220 [7.3%]

11 [21.2%]

< 0.001*

Angina

2498 [81%]

2456 [81%]

42 [80.8%]

0.966

Type of Angina

Stable

1178 [47.2%]

1161 [47.3%]

17 [40.5%]

0.410

Unstable

1319 [52.8%]

1294 [52.7%]

25 [59.5%]

Unstable Type

1339

1270

25

Rest Angina

659 [49.2%]

648 [49.3%]

11 [44%]

< 0.001*

New class

631 [47.1%]

621 [47.3%]

10 [40%]

< 0.001*

Non-Q MI

3 [0.2%]

3 [0.2%]

0 [0%]

0.691

Post Infarct

46 [3.4%]

42 [3.2%]

4 [16%]

0.263

Cardiac

Cardiogenic_Shock

86 [2.8%]

84 [2.8%]

2 [3.8%]

0.640

Arrhythmia

133 [4.3%]

129 [4.3%]

4 [7.7%]

0.226

Inotropes

53 [1.7%]

50 [1.6%]

3 [5.8%]

0.023*

Beta Blockers

ADP Inhibitors

113 [3.7%]

111 [3.7%]

2 [3.8%]

0.944

ACE Inhibitors

313 [10.1%]

307 [10.1%]

6 [11.5%]

0.738

Beta Blockers

1779 [57.7%]

1754 [57.8%]

25 [48.1%]

0.157

Steroids

19 [0.6%]

18 [0.6%]

1 [1.9%]

0.224

Glycoprotein IIb/IIIa Inhibitor

3020 [97.9%]

2969 [97.9%]

51 [98.1%]

0.938

Resuscitation

45 [1.5%]

44 [1.5%]

1 [1.9%]

0.778

Status of the Patients

Elective

2441 [79.2%]

2409 [79.5%]

32 [61.5%]

0.002*

Urgent

417 [13.5%]

407 [13.4%]

10 [19.2%]

0.225

Emergent

222 [7.2%]

212 [7%]

10 [19.2%]

< 0.001*

Salvage

4 [0.1%]

4 [0.1%]

0 [0%]

0.793

Main Indicators

IABP

205 [6.6%]

198 [6.5%]

7 [13.5%]

0.047*

Dialysis newly required

33 [1.1%]

30 [1%]

3 [5.8%]

< 0.001*

Prolonged Ventilation 24 h

288 [9.3%]

276 [9.1%]

12 [23.1%]

< 0.001*

Deep sternal wound infection

5 [0.2%]

5 [0.2%]

0 [0%]

0.769

Reopen

102 [3.3%]

100 [3.3%]

2 [3.8%]

0.827

Long Duration

< 14 Days

2828 [91.7%]

2792 [92.1%]

36 [69.2%]

< 0.001*

>=14 Days

256 [8.3%]

240 [7.9%]

16 [30.8%]

Shorter Duration

>=6 Days

1902 [61.7%]

1873 [61.8%]

29 [55.8%]

0.377

< 6 Days

1182 [38.3%]

1159 [38.2%]

23 [44.2%]

Mortality 30 Days

Alive

2982 [96.7%]

2936 [96.8%]

46 [88.5%]

< 0.001*

Expired

102 [3.3%]

96 [3.2%]

6 [11.5%]