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Table 4 Univariate and multivariable analysis of 2-year adverse events

From: Elevated preoperative neutrophil‐to‐lymphocyte ratio predicts early adverse outcomes in uncomplicated type B aortic dissection undergoing TEVAR

Variable

Univariate analysis

Multivariate analysis

HR (95 % CI)

P value

HR (95 % CI)

P value

Age

1.02 (1.00, 1.07)

0.296

  

Male gender

0.40 (0.13, 1.22)

0.105

0.49 (0.10, 2.31)

0.363

BMI

0.94 (0.81, 1.11)

0.479

  

Smoking

0.84 (0.23, 3.06)

0.792

  

Alcohol

2.82 (0.92, 8.61)

0.069

0.98 (0.23, 4.16)

0.980

Hypertension

1.60 (0.44, 5.81)

0.476

  

False lumen patency

    

 Patent false lumen

Reference

 

1

 

 Partial thrombosis

0.67 (0.15, 3.10)

0.608

0.50 (0.07, 3.28)

0.466

 Complete thrombosis

3.43 (0.74, 15.89)

0.115

4.14 (0.51, 33.35)

0.182

Distance of LSCA ≤ 2 cm

1.02 (0.28, 3.71)

0.976

  

Maximum diameter of abdominal aorta (cm)

1.07 (0.97, 1.18)

0.159

1.09 (0.92, 1.29)

0.316

SBP on admission (mmHg)

1.00 (0.97, 1.03)

0.907

  

DBP on admission (mmHg)

0.91 (0.83, 0.96)

0.003

0.86 (0.78, 0.95)

0.003

Temperature preoperatively (℃)

0.64 (0.14, 2.85)

0.558

  

Creatinine preoperatively (µmol/l)

1.00 (0.98, 1.02)

0.741

  

Platelet count preoperatively (×109/l)

0.99 (0.99, 1.00)

0.107

  

Preoperative NLR per SD

1.58 (1.11, 2.26)

0.011

1.98 (1.14, 3.44)

0.015

Alpha-blockers

3.60 (0.47, 7.68)

0.219

  

Beta-blockers

0.95 (0.31, 2.91)

0.929

  

ARBs

1.06 (0.24, 4.79)

0.939

  

ACEIs

1.12 (0.23, 4.81)

0.939

  

CCBs

0.47 (0.16, 1.46)

0.193

0.78 (0.14, 4.40)

0.776

Statins

0.67 (0.21, 2.16)

0.497

  

Timing of procedure

    

 Acute (1–14 days)

Reference

   

 Subacute (14–92 days)

1.16 (0.39, 3.46)

0.787

  

ASA classification

    

 I

Reference

 

Reference

 

 II

0.54 (0.17, 1.77)

0.309

0.51 (0.10, 2.73)

0.433

 III

2.96 (0.57, 15.36)

0.195

3.19 (0.22, 46.42)

0.395

Adjunctive stents

3.48 (1.07, 11.32)

0.038

0.79 (0.13, 4.79)

0.800

  1. HR hazard ratio, CI confidence interval, BMI body mass index, LSCA left subclavian artery, NLR neutrophil-to-lymphocyte ratio, SBP systolic blood pressure, DBP diastolic blood pressure, ASA American Society of Anesthesiologists