title: Effects of complementary therapy on health in a national U.S. sample of older adults.
abstract: OBJECTIVE
  The study objectives were to identify types of complementary therapy that are most predictive of health outcomes, including functional status, physical health-related quality of life (HRQoL), and mental HRQoL among older adults.
  
  
  METHODS
  This was a prospective study.
  
  
  METHODS
  The study comprised computer-assisted interviews conducted in participants' homes.
  
  
  METHODS
  Subjects included 1683 adults aged 55 and older who participated in the 2002 National Health Interview Survey and the 2003 Medical Expenditure Panel Survey.
  
  
  METHODS
  None.
  
  
  METHODS
  Functional status, physical HRQoL, and mental HRQoL at 1-year follow-up.
  
  
  RESULTS
  The use of biologically based therapies predicted better functional status, such that users reported less functional impairment than nonusers (p < 0.01), adjusting for age, gender, race/ethnicity, education, health insurance, household income, and comorbid conditions. Users of manipulative and body-based methods reported less functional impairment (p < 0.05). They also reported better physical and mental health-related quality of life, though these relationships were marginally significant. Other groups of therapies, alternative medical systems, mind-body therapies, and prayer were not predictive of either functional status or HRQoL.
  
  
  CONCLUSIONS
  Favorable effects were observed among users of biologically based therapies and users of manipulative and body-based methods. Other types of complementary therapy had no effects on health status over a 1-year follow-up period.
authors.affiliation: Department of Family and Community Medicine, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. hnguyen@wfubmc.edu
authors.forename: Ha T
authors.initials: HT
authors.lastname: Nguyen
authors.forename: Joseph G
authors.initials: JG
authors.lastname: Grzywacz
authors.forename: Wei
authors.initials: W
authors.lastname: Lang
authors.forename: Michael
authors.initials: M
authors.lastname: Walkup
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Arcury
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D015913:Chelation Therapy; D000529:Complementary Therapies; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008519:Medicine, Traditional; D008875:Middle Aged; D026201:Musculoskeletal Manipulations; D044623:Nutrition Therapy; D017063:Outcome Assessment, Health Care; D008517:Phytotherapy; D011446:Prospective Studies; D011788:Quality of Life; D016896:Treatment Outcome; D014481:United States