Time

Group-A

Group-B

Group-C

Group-D

P-value

1 min.

7 (23%)

6 (20%)

6 (20%)

4 (15%)

0.13

2 min.

26 (85%)

19 (62%)

12 (40%)

9 (30)

0.05*

3 min.

26 (85%)

19 (62%)

13 (42%)

7 (25%)

0.05*

4 min.

24 (80%)

20 (65%)

11 (36%)

6 (20%)

0.05*

5 min.

22 (75%)

6 (20%)

16 (54%)

22 (75%)

0.05*