• Ju Ok Park, Sang Do Shin, Jaiyong Kim, Kyoung Jun Song, and Michael D Peck.
• Department of Emergency Medicine, Cheju National University College of Medicine, 66 Jejudaehakno, Jeju-si, Jeju Special Self-governing Province 690-756, Republic of Korea. juok.park@gmail.com
• Burns. 2009 Jun 1; 35 (4): 482-90.

BackgroundIt has been previously established that the incidence of burn is higher in lower socioeconomic (SES) groups. What is not clear, however, is whether or not the severity of burn is also higher in lower SES groups. The purpose of this study is to establish a relationship between household-level socioeconomic status (SES) and severity-based incidence of burn.MethodsA burn injury database was generated from the National Injury Database (2001-2003) with a 1-year follow-up period containing information about the date and time of burn injury, the International Classification of Disease 10th Edition-based (ICD-10) diagnostic codes, gender, age, residence, and type of insurance. In addition, we calculated the severity of each burn using the Excess Mortality Ratio-adjusted Injury Severity Score (EMR-ISS), which is similar to the New Injury Severity Score. Socioeconomic status was measured on the basis of quintiles of premiums for National Health Insurance, which was decided on a household-level either by monthly salary (Employee Insurance, EI) or by owned property (Self-Employed Insurance, SEI). Medical Aid (MA) population was regarded as a reference. After calculation of 5 year-gender specific standardized incidence rates (SIRs) of burn by SES groups, the association of SES and severity of burn was evaluated using a multivariate logistic regression model and the Cox-proportional hazard regression analysis.ResultsA total of 870,411 burn cases were examined. The standardized incident rates (SIRs) of mild(1ConclusionsSeverity-based incidence of burn was significantly affected by household-level SES in a nationwide cohort study, with more severe injuries noted in the lower socioeconomic groups.

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