title: Impact of lifestyle intervention on lost productivity and disability: improving control with activity and nutrition.
abstract: OBJECTIVE
  To evaluate the effectiveness of a lifestyle intervention (LI) in reducing work loss and disability days.
  
  
  METHODS
  One year randomized controlled trial of health plan members (n = 147) with type 2 diabetes and obesity. Members were randomized to modest-cost LI or usual care (UC). Outcomes were group differences in cumulative days either missed at work or with disability using Mann-Whitney U-tests and Poisson regression models.
  
  
  RESULTS
  LI reduced the risk of workdays lost by 64.3% (P <or= 0.001) compared to UC (annual accumulation: UC: 3.49 days vs LI: 0.92 days, P = 0.01). LI decreased the risk of disability days by 87.2% (P = 0.0003) compared to UC (annual accumulation: UC: 5.3 days vs LI: 0.94 days, P <or= 0.001). Similar trends were observed among the subset of people with depression.
  
  
  CONCLUSIONS
  LIs reduce work loss and disability days associated with diabetes and obesity.
authors.affiliation: Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA 22908-0717, USA. amw6n@virginia.edu
authors.forename: Anne M
authors.initials: AM
authors.lastname: Wolf
authors.forename: Mir S
authors.initials: MS
authors.lastname: Siadaty
authors.forename: Jayne Q
authors.initials: JQ
authors.lastname: Crowther
authors.forename: Jerry L
authors.initials: JL
authors.lastname: Nadler
authors.forename: Douglas L
authors.initials: DL
authors.lastname: Wagner
authors.forename: Stephen L
authors.initials: SL
authors.lastname: Cavalieri
authors.forename: Kurtis S
authors.initials: KS
authors.lastname: Elward
authors.forename: Viktor E
authors.initials: VE
authors.lastname: Bovbjerg
mesh_terms: D000041:Absenteeism; D000328:Adult; D015992:Body Mass Index; D003863:Depression / Q000150:complications; D003924:Diabetes Mellitus, Type 2 / Q000150:complications / Q000628:therapy*; D004185:Disability Evaluation; D004526:Efficiency; D015444:Exercise / Q000502:physiology*; D005260:Female; D006293:Health Promotion / Q000191:economics / Q000379:methods*; D006304:Health Status; D006801:Humans; D008019:Life Style; D008297:Male; D008875:Middle Aged; D044623:Nutrition Therapy / Q000379:methods*; D009765:Obesity / Q000150:complications / Q000628:therapy*; D010043:Outcome and Process Assessment, Health Care; D016012:Poisson Distribution; D018709:Statistics, Nonparametric; D013997:Time Factors; D014768:Virginia