title: A note on obesity as epidemic in Korea.
abstract: OBJECTIVE
  To analyze the incidence of obesity in adults aged 19-59 years in Korea and predict its trend in the future.
  
  
  METHODS
  We considered a two-compartmental deterministic mathematical model Susceptible-Infected-Susceptible (SIS), a system of difference equations, to predict the evolution of obesity in the population and to propose strategies to reduce its incidence.
  
  
  RESULTS
  The prevention strategy on normal-weight individuals produced a greater improvement than that produced by treatment strategies.
  
  
  CONCLUSIONS
  Mathematical model sensitivity analysis suggests that obesity prevention strategies are more effective than obesity treatment strategies in controlling the increase of adult obesity in Korea.
authors.affiliation: Department of Mathematics, Kyungpook National University, Daegu, Korea.
authors.forename: Mun Seok
authors.initials: MS
authors.lastname: Kim
authors.forename: Chaeshin
authors.initials: C
authors.lastname: Chu
authors.forename: Yongkuk
authors.initials: Y
authors.lastname: Kim
keywords: epidemic; mathematical modeling; obesity; stability