title: Sociodemographic determinants of pedometer-determined physical activity among Japanese adults.
abstract: BACKGROUND
  Although previous studies have reported physical activity and its sociodemographic determinants using self-report measures, there have been few studies using pedometers.
  
  
  OBJECTIVE
  To ascertain pedometer-determined physical activity and its sociodemographic determinants among community residents living in four Japanese cities.
  
  
  METHODS
  A cross-sectional mail survey was conducted from February 2007 to January 2008 with a sample of 4000 residents (aged 20-69 years and 50% male) who were randomly selected from the registry of residential addresses. Complete responses for both questionnaire and pedometer were obtained from 790 residents (48.3±13.7 years, 46.7% male). Associations of 11 sociodemographic variables with steps per day were examined using multiple logistic regression analyses. Data were analyzed in 2010.
  
  
  RESULTS
  Men averaged 8763±3497 steps/day and women averaged 8242±3277 steps/day. Further, 29.0% of men and 27.8% of women walked ≥10,000 steps/day. City of residence, good self-rated health, low educational attainment, and not owning a car were associated with taking ≥10,000 steps/day in men, whereas employed status and dog ownership were associated with walking ≥10,000 steps/day in women.
  
  
  CONCLUSIONS
  The results contribute to understanding of step-defined physical activity and its sociodemographic determinants. A diversity of step counts by sociodemographic variables clarifies specific populations among Japanese who are in need of intervention to promote physical activity.
authors.affiliation: Department of Preventive Medicine and Public Health, Tokyo Medical University, Japan. inoue@tokyomed.ac.jp
authors.forename: Shigeru
authors.initials: S
authors.lastname: Inoue
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Ohya
authors.forename: Yuko
authors.initials: Y
authors.lastname: Odagiri
authors.forename: Tomoko
authors.initials: T
authors.lastname: Takamiya
authors.forename: Kenichi
authors.initials: K
authors.lastname: Suijo
authors.forename: Masamitsu
authors.initials: M
authors.lastname: Kamada
authors.forename: Shinpei
authors.initials: S
authors.lastname: Okada
authors.forename: Catrine
authors.initials: C
authors.lastname: Tudor-Locke
authors.forename: Teruichi
authors.initials: T
authors.lastname: Shimomitsu
mesh_terms: D056044:Actigraphy / Q000295:instrumentation*; D000328:Adult; D000368:Aged; D000818:Animals; D001336:Automobiles / Q000706:statistics & numerical data; D003430:Cross-Sectional Studies; D003625:Data Collection; D004285:Dogs; D004522:Educational Status; D015444:Exercise; D005260:Female; D006304:Health Status; D006801:Humans; D007564:Japan; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D010067:Ownership / Q000706:statistics & numerical data; D057805:Pets; D012737:Sex Factors; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D016138:Walking / Q000706:statistics & numerical data*; D055815:Young Adult