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Table 5 Multivariate regression analyses of demographic1 and CT2 data

From: Predictive ability of CT findings in the differentiation of complicated and uncomplicated appendicitis: a retrospective investigation of 201 patients undergone appendectomy at initial admission

Characteristics Adjusted OR (95%CI) P value
Age ≥ 50 years 1.67 (0.86–3.24) 0.132
Symptoms and signs   
Temperature ≥ 37 °C 1.85 (0.90–3.77) 0.093
Lack of pain migration 2.06 (1.03–4.13) 0.040
Anorexia 1.25 (0.61–2.57) 0.539
Laboratory results   
Neutrophilia ≥ 82% 2.87 (1.42–5.81) 0.003
Alvarado score   
0–4 1  
5–8 0.83 (0.25–2.77) 0.757
9–10 1.90 (0.33–10.95) 0.473
Duration of symptom ≥ 24 h 5.84 (2.86–11.96)  < 0.001
CT findings   
Appendiceal diameter > 12 mm 1.47 (0.58–3.72) 0.417
Tip appendiceal diameter > 10 mm 1.18 (0.46–3.00) 0.728
Mucosal enhancement defect 4.62 (1.86–11.51) 0.001
Intraluminal appendicolith 1.64 (0.39–6.85) 0.499
Appendicolith causing obstruction 0.78 (0.16–3.71) 0.751
Fat stranding; moderate–severe 4.41 (1.06–18.29) 0.041
Fluid collection 4.45 (0.49–40.74) 0.187
Periappendiceal fluid 1.22 (0.47–3.20) 0.687
Ascites 1.98 (0.73–5.40) 0.182
Small bowel dilatation 1.31 (0.19–8.93) 0.786
Small bowel thickening 1.20 (0.45–3.16) 0.720
  1. 1Nagelkerke R2 = 0.336; overall accuracy 73.1%
  2. 2Nagelkerke R2 = 0.563; overall accuracy = 79.5%