title: Healthy lifestyle characteristics among adults in the United States, 2000.
abstract: BACKGROUND
  Many public health recommendations and clinical guidelines emphasize the importance of healthy lifestyles. Recent epidemiologic studies demonstrate that following a healthy lifestyle has substantial health benefits. The objectives of this study were to report on the prevalence of healthy lifestyle characteristics (HLCs) and to generate a single indicator of a healthy lifestyle.
  
  
  METHODS
  National data for the year 2000 were obtained from the Behavioral Risk Factor Surveillance System, which consists of annual, statewide, random digit-dialed household telephone surveys. We defined the following 4 HLCs: nonsmoking, healthy weight (body mass index [calculated as weight in kilograms divided by the square of height in meters] of 18.5-25.0), consuming 5 or more fruits and vegetables per day, and regular physical activity (> or =30 minutes for > or =5 times per week). The 4 HLCs were summed to create a healthy lifestyle index (range, 0-4), and the pattern of following all 4 HLCs was defined as a single healthy lifestyle indicator. We report prevalences of each HLC and the indicator by major demographic subgroups.
  
  
  RESULTS
  By using data from more than 153 000 adults, the prevalence (95% confidence interval) of the individual HLCs was as follows: nonsmoking, 76.0% (75.6%-76.4%); healthy weight, 40.1% (39.7%-40.5%); 5 fruits and vegetables per day, 23.3% (22.9%-23.7%); and regular physical activity, 22.2% (21.8%-22.6%). The overall prevalence of the healthy lifestyle indicator (ie, having all 4 HLCs) was only 3.0% (95% confidence interval, 2.8%-3.2%), with little variation among subgroups (range, 0.8%-5.7%).
  
  
  CONCLUSIONS
  These data illustrate that a healthy lifestyle-defined as a combination of 4 HLCs-was undertaken by very few adults in the United States, and that no subgroup followed this combination to a level remotely consistent with clinical or public health recommendations.
authors.affiliation: Department of Epidemiology, College of Human Medicine, Michigan State University, B601 West Fee Hall, East Lansing, MI 48823, USA. Reevesm@msu.edu
authors.forename: Mathew J
authors.initials: MJ
authors.lastname: Reeves
authors.forename: Ann P
authors.initials: AP
authors.lastname: Rafferty
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001519:Behavior / Q000502:physiology*; D016001:Confidence Intervals; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D007407:Interviews as Topic; D008019:Life Style; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012016:Reference Values; D012189:Retrospective Studies; D012307:Risk Factors; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology