Table 2 Comparison of rest and cough VAS scores of postoperative drainage tube pain among the three groups

Rest VAS

N

1 (1,1)

1.5 (0,4)

1 (0,1)

1 (0,1)

L

1 (1,1)

1.5 (1,2.75)^#

1 (0,1)

1 (0,1)

M

1 (0.25,1)

1 (0,1)^*

0 (0,1)

0 (0,1)

P-value

0.062

0.011

0.234

0.687

Cough VAS

N

4 (3,5)

4 (3,4.75)

3 (2,4)

2 (1.25,2.75)

L

3 (2,4)^**

3 (2,3)^***

2 (1,2)^**

1 (0.25,2)^**

M

2 (2,3)^***

2 (2,3) ^***

2 (1,2) ^***

1 (1,1) ^***

P-value

<0.001

<0.001

<0.001

<0.001