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Table 2 Linear mixed model for cardiac index

From: Study of the accuracy of a radial arterial pressure waveform cardiac output measurement device after cardiac surgery

 

Model 1

Model 2

Value

SE

DF

t-value

p-value

Value

SE

DF

t-value

p-value

(Intercept)

2.540

0.214

91

11.866

0.000

2.420

0.232

84

10.423

0.000

Sensor2

− 0.146

0.086

91

− 1.694

0.094

0.094

0.198

84

0.474

0.637

t6

0.238

0.179

91

1.332

0.186

0.367

0.229

84

1.601

0.113

t12

0.398

0.181

91

2.198

0.030

0.622

0.229

84

2.716

0.008

t24

0.171

0.173

91

0.991

0.324

0.280

0.222

84

1.260

0.211

t48

0.115

0.186

91

0.622

0.535

0.182

0.237

84

0.768

0.445

t72

0.358

0.205

91

1.749

0.084

0.612

0.260

84

2.352

0.021

t96

0.457

0.317

91

1.443

0.152

0.672

0.398

84

1.689

0.095

t120

0.171

0.429

91

0.398

0.692

0.156

0.540

84

0.289

0.774

Sensor2:t6

     

− 0.257

0.288

84

− 0.893

0.375

Sensor2:t12

     

− 0.468

0.294

84

− 1.591

0.115

Sensor2:t24

     

− 0.217

0.281

84

− 0.773

0.442

Sensor2:t48

     

− 0.133

0.298

84

− 0.446

0.657

Sensor2:t72

     

− 0.506

0.324

84

− 1.561

0.122

Sensor2:t96

     

− 0.434

0.486

84

− 0.893

0.374

Sensor2:t120

     

0.026

0.658

84

0.040

0.969

  1. SE standard error, DF degrees of freedom. Sensor 2 corresponds to ProAQT® sensor
  2. Model 1 (Additive Model): AIC (Akaike information criterion) = 207.53, BIC (Bayesian information criterion) = 241.4, ICC (intraclass correlation coefficient) = 0.81. Model 2 (Interactive Model): AIC = 220.56, BIC = 271.22, ICC = 0.78
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Journal of Cardiothoracic Surgery

ISSN: 1749-8090

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