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Ambient Ozone and Emergency Department Visits for Cellulitis

Author

Listed:
  • Mieczysław Szyszkowicz

    (Population Studies Division, Health Canada, 269 Laurier Avenue, Ottawa, ON K1A 0K9, Canada)

  • Eugeniusz Porada

    (Population Studies Division, Health Canada, 269 Laurier Avenue, Ottawa, ON K1A 0K9, Canada)

  • Gilaad G. Kaplan

    (Departments of Medicine and Community Health Sciences, University of Calgary, 3280 Hospital Drive NW, Calgary, AB T2N 1N4, Canada)

  • Brian H. Rowe

    (Department of Emergency Medicine, University of Alberta, 8440-112 Street, Edmonton, AB T6G 2B7, Canada
    School of Public Health, University of Alberta, 8440-112 Street, Edmonton, AB T6G 2B7, Canada)

Abstract

Objectives were to assess and estimate an association between exposure to ground-level ozone and emergency department (ED) visits for cellulitis. All ED visits for cellulitis in Edmonton, Canada, in the period April 1992–March 2002 (N = 69,547) were examined. Case-crossover design was applied to estimate odds ratio (OR, and 95% confidence interval) per one interquartile range (IQR) increase in ozone concentration (IQR = 14.0 ppb). Delay of ED visit relating to exposure was probed using 0- to 5-day exposure lags. For all patients in the all months (January–December) and lags 0 to 2 days, OR = 1.05 (1.02, 1.07). For male patients during the cold months (October-March): OR = 1.05 (1.02, 1.09) for lags 0 and 2 and OR = 1.06 (1.02, 1.10) for lag 3. For female patients in the warm months (April-September): OR = 1.12 (1.06, 1.18) for lags 1 and 2. Cellulitis developing on uncovered (more exposed) skin was analyzed separately, observed effects being stronger. Cellulitis may be associated with exposure to ambient ground level ozone; the exposure may facilitate cellulitis infection and aggravate acute symptoms.

Suggested Citation

  • Mieczysław Szyszkowicz & Eugeniusz Porada & Gilaad G. Kaplan & Brian H. Rowe, 2010. "Ambient Ozone and Emergency Department Visits for Cellulitis," IJERPH, MDPI, vol. 7(11), pages 1-11, November.
    • Handle: RePEc:gam:jijerp:v:7:y:2010:i:11:p:4078-4088:d:10293
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