title: Size at birth and coronary artery disease in a population with high birth weight.
abstract: BACKGROUND
  Epidemiologic studies suggest a link between fetal and childhood growth and later coronary artery disease (CAD). The influence of adult body size on the relation between birth size and CAD has not been thoroughly studied.
  
  
  OBJECTIVE
  We investigated the association between birth and adult sizes and CAD within a population with higher birth weight and a lower incidence of and mortality rate from CAD than those seen in other Scandinavian populations.
  
  
  METHODS
  Fatal or nonfatal CAD was ascertained in 2399 men and 2376 women born in the Greater Reykjavik area between 1914 and 1935. Birth size was obtained from the National Archives. Anthropometric measurements in adults were obtained from the randomized prospective Reykjavik Study.
  
  
  RESULTS
  CAD was inversely related to birth length (P for trend = 0.029) in men but was not significantly related to birth weight or ponderal index (kg/m(3)). In men who were born short (< or = 50.5 cm) and who became tall adults (either 175-180.5 or > 180.5 cm), the odds ratios (95% CI) for CAD were 1.9 (1.1, 3.1) and 2.2 (1.2, 4.0), respectively, when compared with men in the reference group (those born 52.5-54.0 cm long). A U-shaped relation between birth size and CAD was found for women.
  
  
  CONCLUSIONS
  Size at birth has an effect on CAD, but the effect is modified by adult body size. This confirms that environmental factors operate in both the prenatal and postnatal periods with regard to the development of CAD. The large birth size seen among Icelanders may explain the lower incidence and mortality rate of CAD in Iceland than are seen in other white populations.
authors.affiliation: Unit for Nutrition Research, Landspitali-University Hospital, Reykjavik, Iceland. ingigun@hi.is
authors.forename: Ingibjorg
authors.initials: I
authors.lastname: Gunnarsdottir
authors.forename: Bryndis E
authors.initials: BE
authors.lastname: Birgisdottir
authors.forename: Inga
authors.initials: I
authors.lastname: Thorsdottir
authors.forename: Vilmundur
authors.initials: V
authors.lastname: Gudnason
authors.forename: Rafn
authors.initials: R
authors.lastname: Benediktsson
mesh_terms: D000368:Aged; D001724:Birth Weight; D001827:Body Height; D015992:Body Mass Index; D003327:Coronary Disease / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007055:Iceland / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology; D016017:Odds Ratio