Variable

Group 1^Before

(n = 12)

Group 1^After

(n = 12)

t test

P value

IVC pre:

Mean ± SD

Range

2.16 ± 0.14

2 - 2.4

1.73 ± 0.11

1.6 - 1.9

13.951

0.000**

IVC post:

Mean ± SD

Range

1.78 ± 0.08

1.7 - 1.9

1.38 ± 0.01

1.2 - 1.5

16.248

0.000**