Table 4 Univariate and multivariate Cox regression analysis results of normal-weight patients.

From: Development and validation of a BMI stratified mortality prediction model for patients with COPD complicated by HF using the MIMIC-IV database

Characteristics

Uni-HR

Uni-CI

Uni-P

Multi-HR

Multi-CI

Multi-P

Age

1.064

1.019–1.111

0.005

1.074

1.021–1.130

0.006

Gender

1.141

0.561–2.32

0.716

   

Race

1.135

0.855–1.506

0.38

   

SBP(mmHg)

0.978

0.953–1.004

0.102

   

DBP(mmHg)

0.994

0.958–1.032

0.767

   

HR(bpm)

1.047

1.021–1.073

 < 0.001

1.049

1.018–1.080

0.002

RR(bpm)

1.064

0.963–1.174

0.222

   

Temperature(℃)

2.297

0.689–7.659

0.176

   

SaO2(%)

0.997

0.963–1.032

0.845

   

pH

0.004

0–1.792

0.076

   

Hemoglobin(g/dL)

0.958

0.802–1.146

0.641

   

Platelet(× 109/L)

0.998

0.993–1.002

0.315

   

WBC(× 109/L)

1.000

0.975–1.025

0.981

   

Bicarbonate(mmol/L)

1.015

0.94–1.097

0.695

   

BUN(mg/dL)

1.016

1.006–1.026

0.002

   

Calcium(mg/dL)

0.842

0.501–1.416

0.517

   

Glucose(mg/dL)

1.002

0.998–1.007

0.331

   

Serum sodium(mmol/L)

0.963

0.899–1.032

0.285

   

Serum potassium(mmol/L)

0.785

0.427–1.445

0.437

   

Lymphocytes(× 109/L)

0.435

0.168–1.13

0.088

   

Monocytes(× 109/L)

2.167

0.979–4.794

0.056

   

Neutrophils(× 109/L)

1.042

0.945–1.149

0.408

   

PT(s)

1.085

1.01–1.166

0.705

   

aPTT(s)

1.022

1.009–1.035

0.001

1.02

1.005–1.036

0.009

Cerebrovascular disease:

0.700

0.212–2.313

0.559

   

Dementia:

1.87

0.764–4.581

0.171

   

Diabetes:

0.837

0.393–1.782

0.644

   

Mild liver disease:

0.66

0.156–2.785

0.571

   

Severe liver disease:

-

-

-

   

Myocardial infarct:

0.723

0.332–1.578

0.416

   

Peripheral vascular disease:

1.193

0.547–2.599

0.657

   

Renal disease:

1.938

0.947–3.965

0.07

   

Rheumatic disease:

0.691

0.094–5.097

0.717

   

Mild liver disease:

0.66

0.156–2.785

0.571

   

Severe liver disease:

-

-

-

   

SOFA

1.147

1.049–1.256

0.003

   

GCS

0.807

0.649–1.004

0.055

   
  1. SaO2(%)—arterial oxygen saturation (percent); pH—potential of hydrogen; HR—heart rate; SBP—systolic blood pressure; DBP—diastolic blood pressure; WBC—white blood cell count; HR—heart rate; RR—respiratory rate; BUN—blood urea nitrogen; PT—prothrombin time; aPTT—activated partial thromboplastin time; SOFA—sequential organ failure assessment; GCS—Glasgow Coma Scale.
  2. Gender: 1—Male, 2—Female; Race: 1—White, 2—Black, 3—Asian, 4-Other; Comorbidities: 1—YES, 2—NO.
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