TABLE 2

Rates of Imaging Among Pediatric Patients Undergoing an Appendectomy After Presenting to the ED (n = 52 290) Across a Sample of 40 Pediatric Hospitals in the United States, 2005–2009

CTUltrasound Both CT and UltrasoundEither CT or Ultrasound
Boys (n = 31 719)28.020.32.645.7
 <5 y (n = 3015)30.526.73.553.7
 5–10 y (n = 10 643)27.020.82.445.4
 >10 y (n = 18 061)28.218.92.644.5
Girls (n = 20 570)32.522.43.951.0
 <5 y (n = 2125)33.125.93.955.1
 5–10 y (n = 6913)30.921.62.849.7
 <10 y (n = 11 532)33.322.24.551.0
Total <5 y (n = 5140)31.626.43.754.3
Total 5–10 y (n = 17 556)28.521.12.547.1
Total ≥10 y (n = 29 593)30.220.23.347.1