title: Risk factors for acute myocardial infarction among men in the subarctic area.
abstract: OBJECTIVE
  To describe and quantify the main risk factors for acute myocardial infarction (AMI) among males in the subarctic region of Sweden.
  
  
  METHODS
  Case-control study comprising a questionnaire and a clinical examination.
  
  
  METHODS
  Kiruna, a town about 100 miles north of the Arctic Circle with a very high mortality from ischaemic heart disease.
  
  
  METHODS
  219 patients 35 to 64 years of age admitted to Kiruna District Hospital with a first myocardial infarction between 1973 and 1985, and 438 age-matched controls.
  
  
  RESULTS
  The main risk factors for the whole group were hypertension (odds ratio [OR] 3.5), family history of AMI (OR 2.2), diabetes mellitus (OR 2.2), and smoking (OR 1.7). The distribution and strength of the risk factors differed between Kiruna-born and migrants into the community.
  
  
  CONCLUSIONS
  Apart from the traditional risk factors, environmental and psycho-social factors and population dynamics must be taken into account when assessing the risk for a man in Kiruna of developing a myocardial infarction.
authors.affiliation: Department of General Practice, Kiruna District Hospital, Sweden.
authors.forename: H
authors.initials: H
authors.lastname: Sihm
authors.forename: T
authors.initials: T
authors.lastname: Messner
mesh_terms: D000328:Adult; D001110:Arctic Regions; D016022:Case-Control Studies; D048909:Diabetes Complications; D005192:Family Health; D006801:Humans; D006973:Hypertension / Q000150:complications*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology / Q000209:etiology*; D016017:Odds Ratio; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects*; D011795:Surveys and Questionnaires; D013548:Sweden / Q000453:epidemiology; D014171:Transients and Migrants