title: Trend analysis in the prevalence of type 2 diabetes according to risk factors among Korean adults: based on the 2001~2009 Korean National Health and Nutrition Examination Survey data.
abstract: OBJECTIVE
  The objective of this study was to provide a trend analysis of the prevalence of diabetes relative to the socioeconomic, lifestyle, and physiologic risk factors among Korean adults aged over 30 years for a 10-year period using data from the Korean National Health and Nutrition Examination Survey.
  
  
  METHODS
  Prevalence difference and the slope index of inequality were calculated for each risk factors using binomial regression by considering the repeated cross-sectional features of the data. The prevalence ratio and the relative index of inequality were calculated using log-binomial regression. Linear trend tests were performed using SAS 9.2.
  
  
  RESULTS
  Crude prevalence of diabetes increased over the 10-year period, and was higher for men than for women. It was very high for adults 60 years or over, consistently increasing over time. The prevalence among unemployed men, women with higher level of stress, women with hypertension, and adults with serum triglyceride levels over 135 mg/dL increased over the 10-year period in comparison with the respective control group.
  
  
  CONCLUSIONS
  Considering the rapid economic development and associated lifestyle changes in Korea, action should be taken to control the prevalence of diabetes by both preventing and consistently monitoring these identified risk factors using a public-health approach.
authors.affiliation: Department of Statistics, Kangwon National University, Chuncheon, Korea.
authors.forename: Young Ju
authors.initials: YJ
authors.lastname: Kim
authors.affiliation: Regional Center for Respiratory Disease, Kangwon National University Hospital, Chuncheon, Korea.
authors.forename: Myoung Nam
authors.initials: MN
authors.lastname: Lim
authors.affiliation: Department of Nursing, Kangwon National University, Chuncheon, Korea. ds1119@kangwon.ac.kr.
authors.forename: Dong Suk
authors.initials: DS
authors.lastname: Lee
mesh_terms: D000328:Adult; D000368:Aged; D000428:Alcohol Drinking; D044466:Asian People; D015992:Body Mass Index; D002784:Cholesterol / Q000097:blood; D003430:Cross-Sectional Studies; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology* / Q000473:pathology; D015444:Exercise; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D008019:Life Style; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D015995:Prevalence; D056910:Republic of Korea; D012307:Risk Factors; D012907:Smoking; D012959:Socioeconomic Factors; D013315:Stress, Psychological; D014280:Triglycerides / Q000097:blood; D014478:Unemployment
chemical_list: D014280:Triglycerides; D002784:Cholesterol
keywords: Prevalence; Risk factors; Trends; Type 2 diabetes mellitus