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Table 5 Univariable and multivariable predictors of distance (m) performance in 6 minutes walking test

From: Echocardiographic predictors of exercise capacity and mortality in chronic obstructive pulmonary disease

 

Univariable predictors

Multivariable predictors

Multivariable predictors

Model 1

Model 2

 

β

P

β

P

β

P

Age

-.305

0.004

-.406

<0.001

-.323

<0.001

Gender

  

.153

0.064

  

BMI

  

-.649

<0.001

-.595

<0.001

FEV1

.305

0.004

    

FEV1/FVC

.196

0.067

    

IC

.272

0.010

    

IC/TLC

.361

<0.001

    

DLCO SB

.390

<0.001

.547

<0.001

.608

<0.001

SATrest

.288

0.006

    

TR

-.386

<0.001

  

-.239

0.005

E/e’

-.285

0.015

    
  1. BMI, gender, residual volume, functional residual capacity, total lung capacity and cardiac stroke volume index were also tested for univariable prediction but were insignificant.
  2. Model 1 tests multivariable prediction of baseline variables (age, gender, BMI) and lung function variables only (FEV1, FEV1/FVC, IC, IC/TLC, TLC, RV, DLCO SB, SATrest).
  3. Model 2 tests echochardiographic univariable predictors of 6MWD (TR, CI, E/e’) added to model 1. Overall adjusted r2 values for model 1 and 2 are 0.475 and 0.511 respectively.
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BMC Cardiovascular Disorders

ISSN: 1471-2261

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