Table 4 Univariate/multivariate comparison of poor prognosis groups

Age(years)

1.067 (1.036–1.099)

 < 0.001

1.063 (1.029–1.098)

 < 0.001

Female

0.893 (0.450–1.771)

0.746

-

-

BMI (kg/m²)

1.167 (1.081–1.261)

 < 0.001

1.138 (1.047–1.237)

0.002

Smoking

1.037 (0.633–1.697)

0.887

-

-

Drinking

1.050 (0.623–1.769)

0.855

-

-

Medical history

 Diabetes mellitus

0.621 (0.252–1.532)

0.301

-

-

 Hypertension

3.755 (1.314–10.732)

0.014

3.697 (1.222–11.189)

0.021

Prior malperfusion

  ≥ 3 organs, n, (%)

1.929 (0.472–7.887)

0.361

-

-

Echocardiography results

 LVEF

0.976 (0.948–1.006)

0.117

0.985 (0.951–1.019)

0.380

Laboratory results

 Hb

0.994 (0.980–1.007)

0.351

-

-

 CRP

0.998 (0.991–1.005)

0.609

-

-

 Cr

1.001 (0.998–1.003)

0.757

-

-

 BNP

1.000 (1.000–1.000)

0.626

-

-

 Serum albumin

1.001 (0.979–1.023)

0.950

-

-

 Serum potassium

0.854 (0.546–1.337)

0.491

-

-

 Serum sodium

1.001 (0.964–1.038)

0.978

-

-

 Serum chloride

1.006 (0.970–1.043)

0.746

-

-

 serum calcium

0.246 (0.073–0.835)

0.024

-

-

Surgical management

 Root repalcement, n, (%)

1.084 (0.471–5.052)

0.474

-

-

 Additional CABG, n, (%)

1.084 (0.221–5.323)

0.921

-

-

 Operation time

1.001 (0.998–1.004)

0.654

-

-

 CPB time

1.001 (0.997–1.004)

0.744

-

-

Perioperative calcium infusion

1.001 (0.996–1.006)

0.747

-

-

 Lactic acid_max

1.096 (1.033–1.163)

0.002

1.093 (1.022–1.169)

0.010

 VIS_max

1.024 (0.999–1.051)

0.062

1.005 (0.979–1.031)

0.712

Serum calcium

 High group

0.918 (0.485–1.739)

0.794

0.818 (0.403–1.661)

0.827

 Medium group

Ref

Ref

 Continuous low group

2.981 (1.466–6.063)

0.003

2.454 (1.074–5.604)

0.033

Low serum calcium duration

  < 24 h

Ref

Ref

 24–48 h

1.481 (0.740–2.965)

0.267

1.534 (0.715–3.291)

0.272

  > 48 h

2.629 (1.302–5.310)

0.007

3.595 (1.597–8.093)

0.002

 ICU stay time

1.003 (0.979–1.028)

0.700

-

-

 Hospital stays

1.003 (0.992–1.015)

0.557

-

-