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Table 3 (a) Odds ratio of clinical and laboratory factors for thrombotic (arterial and venous) and major bleeding events. (b) Association of thrombotic and major bleeding events to mortality

From: Low incidence of venous thrombosis but high incidence of arterial thrombotic complications among critically ill COVID-19 patients in Singapore

a) Factors

Thrombotic Events

Major Bleeding Events

Odds Ratio

95% Confidence Interval

P value

Odds Ratio

95% Confidence Interval

P value

Lower Bound

Upper Bound

Lower Bound

Upper Bound

Baseline demographics

 Age

1.034

.990

1.080

.13

1.026

.980

1.075

.27

 Gender, male

1.966

.603

6.414

.26

1.381

.410

4.650

.60

 Ethnicity, Chinese

.900

.333

2.430

.84

.754

.257

2.207

.61

 Diabetes

.505

.168

1.514

.22

.740

.237

2.310

.60

 Hypertension

1.140

.424

3.065

.80

.704

.243

2.040

.52

 Hyperlipidemia

1.800

.670

4.835

.24

1.091

.377

3.155

.87

 Renal impairment

1.118

.284

4.399

.87

2.455

.672

8.962

.17

 Pre-existing cardiovascular diseasea

1.667

.562

4.945

.36

.780

.203

2.999

.72

ICU-specific features

 APAHCE score

.979

.904

1.061

.61

.997

.918

1.082

.94

 SOFA score

1.043

.890

1.224

.60

1.161

.993

1.358

.06

 Mechanical ventilation

3.000

.644

13.973

.16

5.000

.626

39.963

.13

 Dialysis support

1.718

.606

4.867

.31

4.940

1.629

14.978

.005

 Use of thromboprophylaxis

.492

.184

1.313

.16

.376

.128

1.108

.08

Laboratory findings

 PT

1.133

.965

1.329

.13

1.060

.906

1.241

.47

 aPTT

.999

.967

1.032

.97

1.003

.967

1.041

.88

 D-dimer

1.030

.929

1.143

.57

.783

.454

1.352

.38

 Fibrinogen

.956

.751

1.217

.78

.658

.453

.957

.03

 White blood count

1.037

.962

1.117

.35

.994

.906

1.089

.89

 Absolute lymphocyte count

1.246

.698

2.226

.46

.573

.217

1.511

.26

 Absolute neutrophils count

1.030

.945

1.123

.50

1.001

.905

1.107

.99

 Platelet count

.999

.996

1.002

.60

.998

.995

1.002

.35

 C-reactive protein

.995

.989

1.001

.09

1.001

.995

1.006

.75

 Procalcitonin

.996

.969

1.023

.76

.937

.776

1.132

.50

 Creatinine

1.000

.996

1.004

.86

.999

.995

1.004

.78

b) Factors

Mortality

    

Thrombotic events

4.150

1.004

17.161

.05

    

 Arterial events

4.450

.961

20.599

.06

    

 Venous events

1.937

.207

18.141

.56

    

Major bleeding events

3.308

.735

14.878

.12

    
  1. aIncluded ischemic heart disease, congestion heart failure and stroke