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Table 2 Comparison of elderly and younger patients at perioperative baseline

From: Comparison of in-hospital outcomes after coronary artery bypass graft surgery in elders and younger patients: a multicenter retrospective study

Indicators

On-pump CABG (n = 1876)

Off-pump CABG (n = 1221)

Younger patients (n = 1076)

Elderly patients (n = 800)

P value

Younger patients (n = 728)

Elderly patients (n = 493)

P value

Gender

  

< 0.001

  

< 0.001

 Female

281 (26.12%)

292 (36.50%)

 

183 (25.14%)

189 (38.34%)

 

 Male

795 (73.88%)

508 (63.50%)

 

545 (74.86%)

304 (61.66%)

 

BMI (kg/m2)

25.82 (23.88, 27.92)

25.07 (23.17, 27.34)

< 0.001

26.01 (23.83,27.94)

25.66 (23.39,28.05)

0.272

Smoking

  

< 0.001

  

0.002

 No

597 (55.48%)

552 (69.00%)

 

469 (64.42%)

360 (73.02%)

 

 Yes

479 (44.52%)

248 (31.00%)

 

259 (35.58%)

133 (26.98%)

 

Diabetes

  

0.024

  

0.093

 No

639 (59.39%)

516 (64.50%)

 

513 (70.47%)

325 (65.92%)

 

 Yes

437 (40.61%)

284 (35.50%)

 

215 (29.53%)

168 (34.08%)

 

Hypertension

  

0.004

  

0.418

 No

344 (31.97%)

207 (25.87%)

 

275 (37.77%)

175 (35.50%)

 

 Yes

732 (68.03%)

593 (74.12%)

 

453 (62.23%)

318 (64.50%)

 

PCI

  

0.628

  

0.077

 No

881 (81.88%)

648 (81.00%)

 

627 (86.13%)

442 (89.66%)

 

 Yes

195 (18.12%)

152 (19.00%)

 

101 (13.87%)

51 (10.34%)

 

Pre-operative β-blockers medication

  

0.827

  

0.951

 No

267 (24.81%)

195 (24.38%)

 

85 (11.68%)

57 (11.56%)

 

 Yes

809 (75.19%)

605 (75.62%)

 

643 (88.32%)

436 (88.44%)

 

Pre-operative statin medication

  

0.009

  

0.578

 No

63 (5.86%)

72 (9.00%)

 

21 (2.88%)

17 (3.45%)

 

 Yes

1013 (94.14%)

728 (91.00%)

 

707 (97.12%)

476 (96.55%)

 

pH

7.43 (7.39, 7.47)

7.43 (7.39, 7.46)

0.075

7.42 (7.39, 7.46)

7.43 (7.39, 7.46)

0.742

PaO2 (mmHg)

130.00 (102.00, 166.00)

132.00 (106.00, 167.00)

0.238

96.00 (81.00, 132.75)

106.00 (85.00, 148.50)

0.001

PaCO2 (mmHg)

34.00 (30.00, 38.00)

34.00 (31.00, 39.00)

0.080

38.00 (33.00, 42.00)

38.00 (32.00, 41.00)

0.423

Lactate (mmol/L)

1.00 (0.80, 1.50)

1.10 (0.80, 1.60)

0.106

1.40 (0.90, 1.90)

1.20 (0.90, 1.90)

0.047

WBC (109/L)

6.40 (5.40, 7.50)

6.30 (5.30, 7.50)

0.456

6.20 (5.30, 7.37)

6.19 (5.40, 7.20)

0.538

RBC (1012/L)

4.40 (4.10, 4.70)

4.40 (4.00, 4.80)

0.578

4.50 (4.15, 4.90)

4.44 (4.16, 4.81)

0.482

Hb (g/L)

135.00 (124.00, 147.00)

136.00 (123.00, 147.00)

0.872

134.00 (122.00, 143.00)

133.00 (121.00, 142.00)

0.715

NLR

2.13 (1.57, 2.84)

2.07 (1.53, 2.75)

0.131

1.88 (1.46, 2.60)

1.93 (1.46, 2.57)

0.766

PLT (109/L)

215.00 (179.00,255.00)

217.00 (182.00, 255.00)

0.711

178.50 (154.00, 224.00)

187.00 (157.00, 237.00)

0.004

A/G

1.61 (1.45, 1.79)

1.61 (1.46, 1.81)

0.532

1.57 (1.40, 1.75)

1.54 (1.39, 1.73)

0.291

LDL/HDL

2.65 (2.07, 3.36)

2.63 (2.03, 3.33)

0.384

2.52 (1.99, 3.24)

2.49 (1.94, 3.04)

0.317

AST/ALT

0.89 (0.68, 1.14)

0.91 (0.70, 1.17)

0.529

0.96 (0.76, 1.20)

0.90 (0.73, 1.14)

0.020

Creatinine (μmol/L)

69.00 (58.00, 81.00)

69.00 (58.25, 81.00)

0.997

73.00 (62.00, 87.00)

72.00 (61.00, 85.00)

0.137

Glucose (mmol/L)

5.70 (5.10, 6.80)

5.70 (5.10, 6.70)

0.575

5.72 (5.10, 6.74)

5.90 (5.20, 6.97)

0.070

Left main stem lesion

  

0.005

  

0.238

 No

771 (71.65%)

619 (77.38%)

 

474 (65.11%)

337 (68.36%)

 

 Yes

305 (28.35%)

181 (22.62%)

 

254 (34.89%)

156 (31.64%)

 

LVEF (%)

61.00 (55.00, 66.00)

61.00 (55.25, 65.00)

0.806

60.00 (57.00, 63.00)

60.00 (57.00, 64.00)

0.014

LVEDD (mm)

48.00 (45.00, 52.00)

48.00 (45.00, 52.00)

0.474

47.00 (44.00, 49.00)

47.00 (45.00, 50.00)

0.023

LAD (mm)

37.00 (35.00, 40.00)

38.00 (35.00, 40.00)

0.920

35.00 (33.00, 38.00)

36.00 (33.00, 39.00)

0.038

Intracardiac Operation

  

0.141

/

/

/

 No

945 (87.83%)

684 (85.50%)

    

 Yes

131 (12.17%)

116 (14.50%)

    

CPBtime (min)

95.00 (79.00, 120.00)

95.00 (77.00, 121.00)

0.912

/

/

/

Initial 24-h volume status (mL)

− 312.00 (− 759.75, 107.25)

− 290.00 (− 716.50, 95.00)

0.534

− 145.00 (− 481.50, 184.00)

− 145.00 (− 563.00, 186.00)

0.394

  1. The qualitative data were compared by chi-square or Fisher's exact tests. Normally distributed quantitative data were compared by the two-sample independent t-test. Non-parametric quantitative data were compared by the Mann–Whitney U test
  2. BMI body mass index, PCI percutaneous coronary intervention, PaO2 arterial partial pressure of oxygen, PaCO2 arterial partial pressure of carbon dioxide, WBC leukocyte count, RBC erythrocyte count, Hb hemoglobin, NLR neutrophil-to-lymphocyte ratio, PLT platelet count, A/G albumin-to-globulin ratio, LDL/HDL low-density lipoprotein to high-density lipoprotein ratio, AST/ALT aspartate aminotransferase to alanine aminotransferase ratio, LVEF left ventricular ejection fraction, LVEDD left ventricular end-diastolic diameter, LAD left atrial diameter, CPBtime the duration of cardiopulmonary bypass
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Journal of Cardiothoracic Surgery

ISSN: 1749-8090

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