title: [Relationship between various clinical parameters and duration and variability of Q-T and R-R intervals in ECG (an epidemiological population study)].
abstract: OBJECTIVE
  To study the relationship between clinical values of a standard epidemiological study of a male population and the length and variability of Q-T and R-R intervals.
  
  
  METHODS
  A representative sampling from a male population (2184 subjects aged 25-64 years) in Novosibirsk was examined using standard epidemiological methods. Later 251 men were excluded from the study because of impossibility of correct analysis of ECG. The length and dispersion of Q-T interval and time parameters of variability of R-R interval were evaluated.
  
  
  RESULTS
  The size and variability of Q-T and R-R intervals are associated with age and AP irrespective of other clinical parameters of a simultaneous epidemiological study. The length of R-R interval is independently related to body weight index, tobacco smoking, and plasma triglyceride level. R-R variability parameters are associated with coronary disease irrespective of the risk factors.
  
  
  CONCLUSIONS
  Scanning studies with complex analysis of Q-T and R-R interval duration and variability effectively detect subjects at a high risk of arrhythmias and fatal events.
authors: Iu P
authors: IuP
authors: Nikitin
authors: A A
authors: AA
authors: Kuznetsov
authors: S K
authors: SK
authors: Maliutina
mesh_terms: D000328:Adult; D001794:Blood Pressure; D015992:Body Mass Index; D002318:Cardiovascular Diseases / Q000097:blood / Q000503:physiopathology; D008076:Cholesterol, HDL / Q000097:blood; D004562:Electrocardiography; D016021:Epidemiologic Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D012907:Smoking; D014280:Triglycerides / Q000097:blood
chemical_list: D008076:Cholesterol, HDL; D014280:Triglycerides