TABLE 5

Results of Imaging for Group A (n = 265) and Group B (n = 397), n (%)

UltrasonographyCTMRI
Group AGroup BGroup AGroup BGroup AGroup B
Number of studies40 (15.1)365 (91.9)245 (92.5)54 (13.6)4 (1.5)154 (38.7)
Negative for appendicitis10 (25)87 (23.8)116 (47.3)27 (50)3 (75)92 (59.7)
Equivocala24 (60)171 (46.8)0000
Positive for simple appendicitis6 (15)72 (19.7)105 (42.9)16 (29.6)1 (25)55 (35.7)
Positive for complicated appendicitis035 (9.6)24 (9.8)11 (20.4)07 (4.5)
  • a CT and MRI were not coded as equivocal but only as negative or positive for appendicitis (simple or complicated).