title: Increasing body mass index at diagnosis of diabetes in young adult people during 1983-1999 in the Diabetes Incidence Study in Sweden (DISS).
abstract: OBJECTIVE
  To study trends in body mass index (BMI) at diagnosis of diabetes in all young Swedish adults in the age range of 15-34 years registered in a nation-based registry.
  
  
  METHODS
  The BMI was assessed at diagnosis in diabetic patients 15-34 years of age at diagnosis, for a period of 17 years (1983-1999). Islet cell antibodies (ICA) were measured during three periods (1987-1988, 1992-1993 and 1998-1999).
  
  
  METHODS
  A nationwide study (Diabetes Incidence Study in Sweden).
  
  
  METHODS
  A total of 4727 type 1 and 1083 type 2 diabetic patients.
  
  
  METHODS
  Incidence-year specific BMI adjusted for age, gender and time of diagnosis (month).
  
  
  RESULTS
  Body mass index at diagnosis increased significantly both in type 1 (21.4 +/- 3.6 to 22.5 +/- 4.0; P < 0.0001) and in type 2 (27.4 +/- 6.8 to 32.0 +/- 6.0; P < 0.0001) diabetic patients, also when adjusted for age, gender and month of diagnosis. A similar significant increase in BMI was found in type 1 diabetic patients and in type 2 diabetic patients in the periods 1987-1988, 1992-1993 and 1998-1999; years when ICA were assessed and considered in the classification of diabetes. Despite this increase in BMI, there was no increase in the incidence of diabetes in young-adult people in Sweden.
  
  
  CONCLUSIONS
  Body mass index at diagnosis of diabetes in subjects 15-34 years of age has substantially increased during 1983-1999 in Sweden when adjusted for age, gender and month of diagnosis.
authors.affiliation: Department of Community Health Sciences, University of Malmö/Lund, Malmö/Lund, Sweden. bengt.littorin@skane.se
authors.forename: B
authors.initials: B
authors.lastname: Littorin
authors.forename: L
authors.initials: L
authors.lastname: Nyström
authors.forename: B
authors.initials: B
authors.lastname: Gullberg
authors.forename: L
authors.initials: L
authors.lastname: Råstam
authors.forename: J
authors.initials: J
authors.lastname: Ostman
authors.forename: H J
authors.initials: HJ
authors.lastname: Arnqvist
authors.forename: E
authors.initials: E
authors.lastname: Björk
authors.forename: G
authors.initials: G
authors.lastname: Blohmé
authors.forename: J
authors.initials: J
authors.lastname: Bolinder
authors.forename: J W
authors.initials: JW
authors.lastname: Eriksson
authors.forename: B
authors.initials: B
authors.lastname: Scherstén
authors.forename: G
authors.initials: G
authors.lastname: Sundkvist
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D017668:Age of Onset; D015992:Body Mass Index; D003920:Diabetes Mellitus / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000453:epidemiology; D017678:Sex Distribution; D013548:Sweden / Q000453:epidemiology