Prevalence and Incidence of Osteoporosis and Osteoporotic Vertebral Fracture in Korea: Nationwide Epidemiological Study Focusing on Differences in Socioeconomic Status


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Abstract

Study Design.A cross-national study.Objective.To determine the prevalence and incidence of osteoporosis (OP) and osteoporotic vertebral fracture (OVF) in Korea and to investigate if socioeconomic status has an effect.Summary of Background Data.As life expectancy increases, OP and related fragility fractures are also increasing. This presents a serious challenge, not only for health authorities but also for individuals, their families, and society overall. Determining the prevalence and incidence of OP and related fragility fractures is the first step in developing strategies to reduce their increasing disease burdens. Concurrently, we need to confirm whether people with low socioeconomic status are more susceptible to these diseases.Methods.Using the Health Insurance Review and Assessment Service (HIRA) database from 2008 to 2012, we estimated the annual prevalence and incidence of OP and OVF and investigated the differences according to socioeconomic status by National Health Insurance (NHI) beneficiaries and Medical Aid (MA) recipients.Results.In 2012, the standardized prevalence of OP in the NHI and MA groups was 3968 and 6927 per 100,000, respectively (odds ratio, 3.83). The standardized incidence of OP in the MA group was significantly higher than in the NHI group in 2011 and 2012 (odds ratios, 2.34 and 2.19, respectively). In addition, the standardized incidence of OVF in the MA group in 2011 and 2012 was 408 and 389 per 100,000, respectively, and the incidence in the MA group was significantly higher than in the NHI group (odds ratios, 4.13 and 4.12, respectively; P < 0.001).Conclusion.We confirmed that the prevalence and incidence of OP and OVF in the MA group were higher than those in the NHI group. It showed that low income might be a significant factor related to OP and OVF.Level of Evidence: 3

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