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Table 3 Correlations of patient characteristics, respiratory functions with 6MWD and gender-specific regression equations for 6MWD rate

From: Six minute walking distance in kyphoscoliosis patients with chronic respiratory failureTest del cammino di 6 minuti in pazienti con cifoscoliosi ed insufficienza respiratoria cronica

Variables

6MWD, m

6MWD pred%[17]

 

R

P

r

P

Body mass index, kg/m2

-0.576

0.003

-0.266

0.200

Age, year

-0.590

0.002

-0.005

0.981

FEV1, L

0.134

0.564

0.188

0.413

FEV1, % pred

-0.437

0.048

0.059

0.800

FVC, L

0.052

0.823

0.171

0.457

FVC, % pred

-0.412

0.063

0.115

0.620

FEV1/FVC, %

0.163

0.481

-0.096

0.678

PaO2/FiO2, mm Hg

0.114

0.587

0.081

0.700

PaCO2, mm Hg

0.012

0.956

-0.132

0.528

Pulse heart rate, baseline

0.442

0.027

0.044

0.836

Pulse heart rate, end of test

0.150

0.475

-0.097

0.644

SpO2, baseline

-0.278

0.178

-0.286

0.166

SpO2, end of test

-0.432

0.031

-0.214

0.305

Fatigue score, baseline

-0.256

0.216

-0.291

0.158

Fatigue score, end of test

-0.420

0.036

-0.243

0.242

Dyspnea score, baseline

-0.548

0.005

-0.457

0.022

Dyspnea score, end of test

-0.425

0.034

-0.363

0.074

  1. Spearman's Rank Correlation test was performed.
  2. Definition of abbreviations: 6MWD, six-minute walking distance; FEV1, forced expiratory volume in one second; FVC, forced vital capacity; PaO2/FiO2, partial arterial oxygen pressure over fractionated inspired oxygen; PaCO2, partial arterial carbon dioxide pressure; SpO2, pulse oxygen saturation rate.
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Multidisciplinary Respiratory Medicine

ISSN: 2049-6958

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