Parameter

Correlation coefficient (R) in length of nasogastric tube

Gastric babble sound

Chest X-ray

Height

0.505 (p = 0.000)

0.494 (p = 0.000)

Weight

0.261 (p = 0.052)

0.255 (p = 0.058)

BMI (Body Mass Index)

0.000 (p = 0.999)

-0.026 (p = 0.850)