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Table 1 Characteristics of CT and US cohorts

From: An international evaluation of ultrasound vs. computed tomography in the diagnosis of appendicitis

Characteristic CT cohort (N= 79) US cohort (N= 197) P
Age (years)    
Mean (95% CI), n 40.2 (36.8-43.6), 75 30.2 (28.6-31.9), 197 < 0.001
Gender    
Female % (n) 38.7% (29) 59.9% (117) 0.003
Male % (n) 61.3% (46) 40.1% (80)  
Temperature (°C)    
Mean (95% CI), n 36.8 (36.6-36.9), 78 37.1 (37.0-37.2), 186 < 0.001
Heart rate (beats/min)    
Mean (95% CI), n 82.7 (79.2-86.2), 79 87.4 (85.0-89.9), 178 0.028
Systolic BP (mmHg)    
Mean (95% CI), n 126.6 (122.6-130.6), 79 118.4 (116.2-120.7), 180 < 0.001
Diastolic BP (mmHg)    
Mean (95% CI), n 71.6 (69.1-74.1), 79 69.9 (68.3-71.6), 180 0.268
White blood count (103/mm3)    
Mean ± 95% CI, n 12.6 (11.6-13.5), 78 13.5 (12.9-14.1), 197 0.095
  1. *Means were compared with two-tailed t-test. Gender was compared with chi-square test.