TABLE 2. US Findings and Final Diagnoses in Patients according to Sex and Randomization Arm
Final Diagnosis
Male Patients
Female Patients
US Findings Positive* Negative Positive* Negative*

Positive
 Morphine arm 27 24 32 8
 Placebo arm 21 32 37 11
Negative
 Morphine arm 14 37 10 23
 Placebo arm 4 35 10 15

* Histologically confirmed.
Note.—Data are numbers of patients who had US findings or a final diagnosis positive or negative for appendicitis.