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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.