Table 3 Univariate and multivariate analyses of all patients

From: Preoperative blood urea nitrogen-to-serum albumin ratio for prediction of in-hospital mortality in patients who underwent emergency surgery for acute type A aortic dissection

Variable

Univariate Model

Multivariate Model

OR

95% CI

P value

OR

95% CI

P value

Age ≥ 56 (years)

3.561

1.941–6.535

<0.001

3.741

1.640–8.534

0.002

Male

0.922

0.484–1.756

0.804

–

–

–

Body mass index ≥ 25 (kg/m2)

1.087

0.610–1.937

0.777

–

–

–

BUN ≥ 6.15 (mmol/L)

4.919

2.672–9.055

<0.001

8.698

3.641–20.776

<0.001

SA<37.05 (g/L)

3.294

1.688–6.426

<0.001

5.748

2.450–13.484

<0.001

BA-R ≥ 0.155 (mmol/g)

6.815

3.582–12.964

<0.001

6.706

2.995–15.016

<0.001

D-Dimer ≥ 8.21 (ug/mL)

5.805

2.771–12.160

<0.001

4.051

1.640–10.008

0.002

Prothrombin time ≥ 15.65 (sec)

1.197

0.617–2.321

0.595

–

–

–

Heamoglobin<7.04 (10ˆ9/L)

0.895

0.486–1.646

0.721

–

–

–

Hemoglobin <125.5 (g/L)

1.074

0.564–2.046

0.828

–

–

–

Platelet ≥ 222.5 (10ˆ9/L)

0.995

0.560–1.768

0.986

–

–

–

NT-ProBNP ≥ 242.0 (pg/mL)

1.159

0.618–2.175

0.646

–

–

–

Troponin-I ≥ 0.408 (ug/L)

1.247

0.537–2.899

0.608

–

–

–

Lactic acid ≥ 2.55 (mmol/L)

2.889

1.476–5.657

0.002

2.489

0.914–6.780

0.075

Alanine aminotransferase ≥ 38.5 (IU/L)

1.276

0.704–2.314

0.422

–

–

–

Aspartate aminotransferase ≥ 47.5 (IU/L)

1.170

0.629–2.176

0.619

–

–

–

Serum creatinine ≥ 96.3 (umol/L)

2.412

1.355–4.293

0.003

1.491

0.611–3.637

0.380

LVEF ≥ 62.35 (%)

0.545

0.241–1.235

0.146

–

–

–

Hypertension, presence

1.266

0.616–2.602

0.520

–

–

–

Diabetes, presence

0.492

0.115–2.099

0.338

–

–

–

Coronary heart disease, presence

0.77

0.326–1.820

0.552

–

–

–

COPD, presence

1.403

0.310–6.350

0.660

–

–

–

Myocardial ischemia, presence

3.475

1.209–9.985

0.021

1.480

0.263–8.341

0.657

Cerebral ischemia, presence

3.424

1.063–11.028

0.039

2.160

0.467–9.979

0.324

AR(Medium or above), presence

1.639

0.778–3.455

0.194

–

–

–

Surgical procedure

 SUN’S

1.067

0.436–2.613

0.887

–

–

–

 CHEN’S

0.937

0.383–2.295

0.887

–

–

–

Operative time ≥ 309.2 (min)

1.590

0.897–2.818

0.112

–

–

–

CPB time ≥ 140.8 (min)

1.162

0.656–2.057

0.608

–

–

–

Aortic clamp time ≥ 49.6 (min)

1.923

1.081–3.419

0.026

1.774

0.812–3.874

0.150

Aortic Root Concomitant procedure

1.229

0.568–2.662

0.601

–

–

–

  1. BUN blood urea nitrogen, SA serum albumin, BA-R blood urea nitrogen-to-serum albumin ratio, LVEF left ventricular ejection fraction, COPD chronic obstructive pulmonary disease, AR aortic regurgitation, CI confidence interval, OR odds ratios
  2. SUN’S: tetrafurcate graft with stented elephant trunk implantation for total arch replacement surgery
  3. CHEN’S: ascending aorta and hemiarch replacement combined with a triple-branched stent graft surgery. cardiopulmonary bypass (CPB)
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