Time in hours

Group I

Group II

P value

0 - 4

2 (4%)

9 (18%)

0.022*

4 - 12

2 (4%)

8 (16%)

0.024*

12 - 24

0 (0%)

1 (2%)

0.88

Total episodes in 24 hours

4 (8%)

18 (36%)

0.021*