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Table 2 Computed tomography scan utilization among various Alvarado Score categories

From: Randomized control trial comparing an Alvarado Score-based management algorithm and current best practice in the evaluation of suspected appendicitis

  Overall
(n = 160)
Intervention arm
(n = 80)
Usual care arm
(n = 80)
P value
Overall CT Utilization 149 (93.1)75 (93.7)74 (92.5)0.999
CT scans performed stratified by Alvarado Score Category
Alvarado ScoreNumber of patients in intervention armNumber of CT scans done (%)Number of patients in usual care armNumber of CT scans done (%) 
 1 to 331 (33.3)1210 (83.3)0.012
 41515 (100)1413 (92.9) 
 52423 (95.8)1110 (90.9) 
 61514 (93.3)1616 (100) 
 71515 (100)1110 (90.9) 
 887 (87.5)1212 (100) 
 90 43 (75)