Variable

Group 1

(n = 12)

Group 2

(n = 28)

Group 3

(n = 48)

F

P value

L.S.D.

No. of B-lines before

Mean ± SD

Range

10.17 ± 1.12

8 - 12

4.89 ± 0.88

3 - 6

4.35 ± 0.91

3 - 6

192.297

0.000**

P1 = 0.000**

P2 = 0.000**

P3 = 0.017*

No. of B-lines after

Mean ± SD

Range

4.00 ± 0.74

3 - 5

2.04 ± 0.58

1 - 3

1.88 ± 0.61

1 - 3

58.950

0.000**

P1 = 0.000**

P2 = 0.000**

P3 = 0.275

change in No. of B-lines

Mean ± SD

Range

6.17 ± 1.27

3 - 8

2.86 ± 0.65

2 - 4

2.48 ± 0.65

1 - 4

115.187

0.000**

P1 = 0.000**

P2 = 0.000**

P3 = 0.039*