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Appendicitis can usually be diagnosed on completion of a history and physical examination (abdominal pain, vomiting, right lower quadrant tenderness and guarding), although laboratory evaluation with a urinalysis and white blood cell count can be of assistance. In the few cases where doubt remains, plain films of the chest and abdomen can be helpful. Whether and when further imaging is indicated remains...
Background/Purpose: The authors compared 3 quantitative methods for assisting clinicians in the differential diagnosis of abdominal pain in children, where the most common important endpoint is whether the patient has appendicitis. Pretest probability in different age and sex groups were determined to perform Bayesian analysis, binary logistic regression was used to determine which variables were...
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