Table 3. Association between body composition and 6MWD

From: Association of bioelectrical impedance phase angle with exercise tolerance in patients with chronic thromboembolic pulmonary hypertension

 

Univariate analysis

Multiple regression analysis

Model 1

Model 2

(adjusted R2 = 0.31; p < 0.001)

(adjusted R2 = 0.33; p < 0.001)

Coefficient (95 % CI)

p-value

Coefficient (95 % CI)

p-value

Coefficient (95 % CI)

p-value

Age

− 0.31 (− 0.43, − 0.20)

< 0.001

–0.29 (− 0.40, –0.18)

< 0.001

− 0.19 (− 0.32, − 0.07)

0.003

Male sex

0.34 (0.23, 0.46)

< 0.001

0.28 (0.12, 0.43)

< 0.001

0.22 (0.10, 0.34)

< 0.001

Mean PAP

− 0.37 (− 0.47, − 0.24)

< 0.001

–0.37 (− 0.47, –0.26)

< 0.001

− 0.32 (− 0.42, − 0.21)

< 0.001

CO

0.06 (− 0.07, 0.18)

0.357

–0.10 (− 0.21, 0.02)

0.094

− 0.08 (− 0.18, 0.03)

0.141

SMI

0.32 (0.20, 0.44)

< 0.001

0.05 (− 0.12, 0.22)

0.584

  

PhA

0.48 (0.37, 0.59)

< 0.001

  

0.21 (0.06, 0.36)

0.005

  1. 6MWD, 6-minute walk distance; CI, confidence interval; CO, cardiac output; PAP, pulmonary artery pressure; PhA, phase angle; SMI, skeletal muscle index.
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