Table 1.

Patient characteristics

Characteristic
Number of patients	371
Age (years, mean ± SD)	41 ± 20
Male (N, %)	226 (61%)
Female (N, %)	145 (39%)
BMI (kg/m2)	27.7
CRP (mg/L)	121a ± 86
WBC (× 109/L)	14.6b ± 12
Body temperature (°C)	37.5c ± 0.8
Duration of symptoms before imaging (days)	5.0d ± 4.4
ICU	50 (14%)
Length of hospital stay (LOS) (days)	4.4 ± 5.4e
Surgery	254 (69%)

Data available for (a) 364, (b) 362, (c) 250, (d) 363, and (e) 364 patients; LOS could not be determined in 7 patients because of transfers to other hospitals. Seventeen patients (5%) were not hospitalized