Predictors for success of non-operative management of adhesive small bowel obstruction

Table 4 The findings of computed tomography scan on presentation and abdominal X-ray following administration of water-soluble contrast medium in both groups, n (%)

	Group A (n = 90)	Group B (n = 162)	OR (95%CI)	P value
Definitive transition point	85 (94.4)	140 (86.4)	2.67 (0.975-7.318)	0.048
No transition point	5 (5.6)	22 (13.6)
Mesenteric stranding	64 (71.1)	96 (59.3)	1.69 (0.973-2.942)	0.061
No mesenteric stranding	26 (28.9)	66 (40.7)
Small bowel thickening	12 (13.3)	13 (8.0)	1.76 (0.768-4.084)	0.177
No small bowel thickening	78 (86.7)	149 (92)
Water-soluble contrast medium	42 (46.7)	98 (60.5)	0.55 (0.323-0.936)	0.024
Did not receive water-soluble contrast medium	47 (53.3)	60 (39.5)
Presence of free fluid	72 (80)	106 (65.4)	2.11 (1.149-3.888)	0.015
No free fluid	18 (20)	56 (34.6)
No small bowel faecal sign	42 (46.7)	55 (34.0)	1.70 (1.005-2.882)	0.047
Small bowel faecal sign present	48 (53.3)	107 (66.0)
Contrast reaches small bowel only	23 (25.6)	34 (21.0)	3.83 (1.790- 8.209)1	0.001
Contrast reach large bowel	19 (74.4)	76 (79.0)
Grade of obstruction (proximal small bowel diameter in mm), mean ± SD	36.87 ± 7.53	37.35 ± 6.77		0.601

¹Only patient done repeated abdominal X-ray.

OR: Odds ratio; CI: Confidence interval.