| Details | Total n = 42 | Mean ± SD | Group A (3 - 5 day) n = 21 | Group B (>5 day) n = 21 | P value | 
| Volume: <30 ml 31 - 40 ml 41 - 60 ml | 
 8 19 15 | 
 27.12 ± 3.13 34.52 ± 2.65 49.66 ± 5.63 | 
 0 11 10 | 
 8 8 5 | 
 
 X2 = 10.1404 P = 0.006281 | 
| Thickness: 10 - 20 mm 21 - 30 mm 31 - 40 mm | 
 10 18 14 | 
 14.60 ± 3.47 24.83 ± 3.03 34.85 ± 3.48 | 
 0 7 14 | 
 10 11 0 | 
 
 X2 = 24.8889 P = 0.00001 | 
| Midline shift: No shift 0 - 5 mm 6 - 10 mm | 
 7 18 17 | 
 
 3.5 ± 0.98 7.47 ± 1.28 | 
 0 7 14 | 
 7 11 3 | 
 
 X2 = 15.0065 P = 0.000551 |