Acute appendicitis in minority communities: an epidemiologic study.

This study examines the incidence and epidemiological factors of acute appendicitis in various ethnic groups in an urban minority community. The charts of 278 consecutive patients who underwent appendectomy at The Bronx-Lebanon Hospital Center, Bronx, New York, between January 1988 and December 1990 were reviewed. Thirty-eight patients who underwent incidental appendectomy and one patient who had an interval appendectomy were excluded. The remaining 239 patients, all of whom had acute appendicitis, constituted the study population. The incidence of appendicitis for each ethnic group was calculated as a percentage of the total emergency surgical admissions for that group. Acute appendicitis constituted 3.1% of all emergency admissions to the surgical service over the period studied and represented 4.5% of surgical service admissions from the emergency department in Hispanics, 1.9% in African Americans, 1.5% in whites, and 21% in Asians. These differences were statistically significant except some comparisons involving whites. There were no significant differences in the pathological findings regarding the diseased appendix in different racial groups. These results indicate that acute appendicitis is responsible for a higher incidence of emergency admissions among Hispanics than among African Americans. This finding was statistically significant. High white blood cell counts indicated inflammation of the appendix, but had no predictive value for the type of pathology. Surgical findings were similar in all groups.