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Table 6 Univariate and multivariate linear regression analysis for factors affecting 6MWT after IDE

From: Effect of intra-dialytic physical exercise on depression in prevalent hemodialysis patients

6MWT after

Univariate

Multivariate

Unstandardized coefficients

Standardized coefficients

T

P value

Unstandardized coefficients

Standardized coefficients

t

P value

B

S.E

Beta

B

S.E

Beta

TNF-α (pg/ml)

− 0.713

0.220

− 0.424

− 3.243

0.002

− 0.066

0.046

− 0.039

− 1.433

0.159

HDRS

− 4.741

1.392

− 0.441

− 3.406

0.001

0.781

0.317

0.073

2.467

0.018

RAPA

38.038

4.222

0.793

9.010

0.000

2.714

1.692

0.057

1.604

0.116

Peak VO2 (kg min)

44.633

0.914

0.990

48.855

0.000

44.048

2.120

0.977

20.780

0.000

Age

− 4.781

0.484

− 0.819

− 9.883

0.000

0.197

0.218

0.034

0.904

0.371

Duration of ESRD

− 17.285

6.151

− 0.376

− 2.810

0.007

− 1.814

1.103

− 0.039

− 1.644

0.108

  1. 6MWT: six-min walk test, TNF-α: tumor necrosis factor alpha, HDRS: Hamilton Depression Rating Scale, RAPA: rapid assessment of physical activity, peak VO2: peak volume of oxygen consumption, ESRD: end stage renal disease
  2. Bold indicates statistical significance. P value > 0.05: non-significant; P value < 0.05: significant; P value < 0.01: highly significant