Table 3 Displays modified Cox regression analysis used to assess the significant factors associated with outcome (p < 0.05)
Predictor of outcome | Relative-risk | Confidence interval | p-value |
|---|---|---|---|
Symptom duration | |||
24–48 h | 1.83 | 0.289–12.07 | 0.528 |
48–72 h | 0.67 | 0.149–2.970 | 0.596 |
> 72 h at home | 0.52 | 0.132–2.012 | 0.340 |
> 72 h in health center | 0.29 | 0.075–1.112 | 0.075 |
Operative vs. non-operative management | 0.21 | 0.067–0.650 | 0.007 |
Symptoms of IO | |||
Abdominal pain | 0.93 | 0.382–2.256 | 0.870 |
Fever | 0.19 | 0.540–0.665 | 0.009 |
Vomiting | 0.59 | 0.220–1.181 | 0.116 |
Relative constipation | 0.67 | 0.297–1.533 | 0.348 |
Absolute constipation | 1.33 | 0.537–3.280 | 0.540 |
Signs | |||
Abdominal distension | 0.56 | 0.202–1.563 | 0.270 |
Absent bowel sounds | 0.24 | 0.968–0.522 | 0.001 |
Increased bowel sounds | 4.28 | 1.855–9.861 | 0.001 |
Abdominal tenderness | 0.36 | 0.162–0.817 | 0.014 |
Percussion tenderness | 1.61 | 0.162–16.02 | 0.685 |
Sonographic signs of IO | |||
Reversed peristalsis | 0.398 | 0.113–1.402 | 0.152 |
Peritonitis | 0.333 | 0.053–2.088 | 0.241 |
Abdominal masses | 1.058 | 0.185–6.061 | 0.969 |
Clinical vs. radiological diagnosis | 0.762 | 0.346–1.674 | 0498 |
Level of obstruction (SBO vs. LBO) | 3.17 | 1.280–7.861 | 0.013 |
Bowel status | |||
Strangulation | 0.50 | 0.155–1.611 | 0.245 |
Gangrene | 0.20 | 0.059–0.723 | 0.014 |
Perforation | 0.44 | 0.090–2.189 | 0.319 |
peritonitis | 0.25 | 0.508–1.231 | 0.088 |
Urethral catheterization | 0.22 | 0.617–0.789 | 0.020 |