Table 1.

Demographics for patients in each group

	Group 1	Group 2
Patients (n)	151	75
Mean age (years)	50	49
Median (IQR)	47 (34–67)	47 (32–63)
Sex, n (%):
Male	73 (48)	41 (55)
Female	78 (52)	34 (45)
Computed tomography, n (%)	65 (43)	33 (44)
Ultrasound, n (%)	24 (16)	6 (8)

IQR, interquartile range.