TABLE 2

Patient Demographic Characteristics Stratified According to Whether Ultrasound Was Performed Before Specialist Evaluation

CharacteristicOverall (N = 1191)Ultrasound (n = 598)No Ultrasound (n = 593)P
Median age at referral, mo (IQR)23.5 (10–64)19.3 (9–63)23.3 (10–65).34
No. (%) of patients <1 year of age at referral361 (30.3)196 (32.7)165 (27.8).15
No. (%) of patients <2 years of age at referral 631 (53)328 (54.9)303 (51.1).18
  • IQR, interquartile range.