Table 4 Correlation values of the extracted feeding parameters regarding the gestational age, postnatal age, birth weight, measured weight, and feeding volume in all subjects

Total Swallow Count

rho

0.175

0.119

0.009

0.036

0.297

p

0.102

0.269

0.931

0.738

0.005

Swallow Time

rho

0.214

0.027

0.146

0.134

0.291

p

0.045

0.802

0.174

0.213

0.006

Resting Interval Duration

rho

-0.084

0.011

-0.056

-0.063

-0.317

p

0.434

0.919

0.604

0.561

0.003

Maximum Rhythmic Swallow

rho

0.142

0.023

0.004

0.019

0.351

p

0.187

0.833

0.971

0.858

0.001

Average Time Between Rhythmic Swallows

rho

-0.224

0.029

-0.149

-0.171

-0.262

p

0.036

0.791

0.166

0.111

0.014

Inspirium After Swallow Count

rho

0.247

0.049

0.192

0.178

0.288

p

0.020

0.653

0.073

0.097

0.006

Duration of Inspirium After Swallow

rho

0.156

-0.069

0.073

0.104

0.042

p

0.146

0.521

0.500

0.337

0.700

Respiration Rate

rho

-0.005

0.049

0.097

0.097

-0.264

p

0.960

0.650

0.367

0.367

0.013

Spearman correlation analysis