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Epidemiol Infect. 2019 Jan;147:e138. doi: 10.1017/S0950268819000323.

The association of cellulitis incidence and meteorological factors in Taiwan.

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Graduate Institute of Life Sciences, National Defense Medical Center,Taipei,Taiwan.
Division of General Surgery, Department of Surgery,Taoyuan General Hospital, Ministry of Health and Welfare,Taoyuan,Taiwan.
Division of Urology, Department of Surgery,Chang Gung Memorial Hospital at Linkou,Taoyuan,Taiwan.
Department of Pediatrics,Hsinchu MacKay Memorial Hospital,Hsinchu,Taiwan.
Division of Urology, Department of Surgery,Taoyuan General Hospital, Ministry of Health and Welfare,Taoyuan,Taiwan.
Division of Infection Diseases, Department of Internal Medicine,Shuang Ho Hospital, Taipei Medical University,New Taipei City,Taiwan.


Cellulitis is a common infection of the skin and soft tissue. Susceptibility to cellulitis is related to microorganism virulence, the host immunity status and environmental factors. This retrospective study from 2001 to 2013 investigated relationships between the monthly incidence rate of cellulitis and meteorological factors using data from the Taiwanese Health Insurance Dataset and the Taiwanese Central Weather Bureau. Meteorological data included temperature, hours of sunshine, relative humidity, total rainfall and total number of rainy days. In otal, 195 841 patients were diagnosed with cellulitis and the incidence rate was strongly correlated with temperature (γS = 0.84, P < 0.001), total sunshine hours (γS = 0.65, P < 0.001) and total rainfall (γS = 0.53, P < 0.001). The incidence rate of cellulitis increased by 3.47/100 000 cases for every 1° elevation in environmental temperature. Our results may assist clinicians in educating the public of the increased risk of cellulitis during warm seasons and possible predisposing environmental factors for infection.


Cellulitis; NHIRD; epidemiology; meteorological factors

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