Group

Nasal feeding/ oral feeding

Intermittent feeding/ continuous feeding

Regular formula/ special formula

Feeding intolerance

Treatment group

46/2

43/5

45/3

8

Control group

30/2

27/5

28/4

17

χ² value

0.175

0.476

0.939

11.879

P value

0.675

0.490

0.332

<0.001