Table 6 Univariate and multivariate Cox regression analysis results of obesity 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

1.011

0.984–1.039

0.427

   

Gender

1.008

0.591–1.72

0.976

   

Race

1.395

1.16–1.677

 < 0.001

1.422

1.152–1.756

0.001

SBP(mmHg)

0.944

0.923–0.966

 < 0.001

0.976

0.95–1.002

0.068

DBP(mmHg)

0.954

0.923–0.986

0.005

0.95

0.909–0.994

0.027

HR(bpm)

1.027

1.011–1.043

 < 0.001

1.03

1.008–1.053

0.007

RR(bpm)

1.171

1.087–1.261

 < 0.001

1.125

1.029–1.229

0.009

Temperature(℃)

0.505

0.229–1.114

0.09

   

SaO2(%)

0.997

0.978–1.016

0.764

   

pH

0

0–0.001

 < 0.001

   

Hemoglobin(g/dL)

0.963

0.857–1.083

0.529

   

Platelet(× 109/L)

1

0.997–1.003

0.836

   

WBC(× 109/L)

1.054

1.023–1.085

 < 0.001

   

Bicarbonate(mmol/L)

0.846

0.797–0.899

 < 0.001

   

BUN(mg/dL)

1.014

1.006–1.023

0.001

1.01

0.999–1.022

0.087

Calcium(mg/dL)

0.568

0.361–0.893

0.014

   

Glucose(mg/dL)

1.004

1–1.008

0.032

   

Serum sodium(mmol/L)

0.957

0.917–0.999

0.044

   

Serum potassium(mmol/L)

2.207

1.439–3.385

 < 0.001

   

Lymphocytes(× 109/L)

0.928

0.649–1.325

0.68

   

Monocytes(× 109/L)

1.866

1.207–2.886

0.005

   

Neutrophils(× 109/L)

1.046

1.015–1.079

0.004

   

PT(s)

1.034

1.018–1.05

 < 0.001

1.017

0.997–1.037

0.088

aPTT(s)

1.005

0.996–1.014

0.243

   

Cerebrovascular disease:

0.983

0.463–2.089

0.965

   

Dementia:

1.096

0.341–3.519

0.878

   

Diabetes:

0.882

0.517–1.506

0.647

   

Mild liver disease:

1.599

0.683–3.747

0.28

   

Severe liver disease

0.672

0.092–4.901

0.695

   

Myocardial infarct:

1.255

0.733–2.149

0.408

   

Peripheral vascular disease

1.768

0.995–3.141

0.052

1.826

0.955–3.489

0.069

Renal disease

0.996

0.576–1.723

0.989

   

Rheumatic disease

1.287

0.463–3.576

0.629

   

Mild liver disease:

1.599

0.683–3.747

0.28

   

SOFA

1.248

1.175–1.325

 < 0.001

1.11

1.02–1.208

0.016

GCS

0.948

0.768–1.169

0.617

   
  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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