• William D Grant, Nicholas E Nacca, Louise A Prince, and Jay M Scott.
• Department of Emergency Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA.
• Prehosp Disaster Med. 2010 Mar 1;25(2):183-7.

IntroductionThere is a scarcity of analytical data regarding mass-gathering medical care. The purpose of this study was to identify and evaluate the range and nature of illness and injury for patrons of an annual, multi-day, mass gathering.MethodsEncounter data from all patients seen by emergency physicians at the New York State Fair Infirmary during the past five years were analyzed. From these data, a category list was consolidated to 36 reasons for the visit based on chief complaint, nursing notes, and physician notes. The most common reasons for being seen by a physician were analyzed to determine age and gender discrepancies.ResultsThe average number of attendees at the Fair per year from 2004-2008 was 950,973. Emergency physicians evaluated a total of 2,075 patients from 2004-2008. The average patient presentation rate over the past four years (2005-2008) was 4.8 +/-1.1/10,000 patrons. The average transport to hospital rate over the past four years was 2.7 +/-1.1/100,000 patrons. The average age of all patients seen was 34.4 +/-21.6 years, and 58.1% of the patients were female. The most common reasons to seek medical attention included: dehydration/heat-related illness (11.4%); abrasion/laceration (10.6%); and fall-related injury (10.2%). Two groups, dehydration/heat-related illness 74% (t (4) = 2.90, p <0.05), and fall-related injury (68%; t (4) = 5.17, p <0.05) were disproportionately female. There also was a direct relationship between age and female gender within the fall-related injury category (X(2) (1, n = 213) = 11.41, p <0.05).ConclusionsPatron data from fairs and expositions is a valuable resource for studying mass-gathering medical care. A majority (58%) of patients seen at the infirmary were female. The most common reason for being seen was dehydration/heat-related illness, which heavily favored females, but favored no age groups. The abrasion/laceration category did not contribute to the gender discrepancy. Patients who fell tended to be females >40 years of age. Further analysis is required to determine the reason for the gender discrepancies. Planners of multi-day mass gatherings should develop public education programs and evaluate their impact on the at-risk populations identified by this analysis.

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