title: A randomised controlled trial to compare a range of commercial or primary care led weight reduction programmes with a minimal intervention control for weight loss in obesity: the Lighten Up trial.
abstract: BACKGROUND
  Developed countries are facing a huge rise in the prevalence of obesity and its associated chronic medical problems. In the UK Primary Care Trusts are charged with addressing this in the populations they serve, but evidence about the most effective ways of delivering services is not available. The aim of this study is to determine the effectiveness of a range of weight loss programmes for obese patients in primary care and to determine the characteristics of patients who respond to an invitation to a free weight management programme.
  
  
  METHODS
  Lighten Up is a randomised controlled trial comparing a range of 12-week commercial and NHS weight reduction programmes with a comparator group who are provided with 12 vouchers enabling free entrance to a local leisure centre. The weight reduction programmes are: (i) Weight Watchers, (ii) Slimming World, (iii) Rosemary Conley, (iv) a group-based dietetics-led programme (Size Down), (v) general practice one-to-one counselling, (vi) pharmacy-led one-to-one counselling, (vii) choice of any of the 6 programmes. People with obesity or overweight with a co-morbid disorder are invited to take part by a letter from their general practitioner. The sample size is 740 participants.The primary outcome is weight loss at programme-end (3 months). Secondary outcomes are weight-loss at one year, self-reported physical activity at 3 and 12 months follow-up and percentage weight-loss at 3 months and one year.
  
  
  CONCLUSIONS
  This trial will provide evidence about the effectiveness of a range of different weight management programmes in a primary care population.
  
  
  BACKGROUND
  Current Controlled Trials ISRCTN25072883.
authors.affiliation: School of Health & Population Sciences, University of Birmingham, Birmingham B15 2TT, UK. c.b.jolly@bham.ac.uk
authors.forename: Kate
authors.initials: K
authors.lastname: Jolly
authors.forename: Amanda
authors.initials: A
authors.lastname: Daley
authors.forename: Peymane
authors.initials: P
authors.lastname: Adab
authors.forename: Amanda
authors.initials: A
authors.lastname: Lewis
authors.forename: John
authors.initials: J
authors.lastname: Denley
authors.forename: Jane
authors.initials: J
authors.lastname: Beach
authors.forename: Paul
authors.initials: P
authors.lastname: Aveyard
mesh_terms: D003153:Community Health Services; D017598:Efficiency, Organizational; D005260:Female; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D008297:Male; D009313:National Health Programs; D009765:Obesity / Q000517:prevention & control*; D010342:Patient Acceptance of Health Care; D011320:Primary Health Care / Q000379:methods*; D013222:State Medicine; D006113:United Kingdom; D015431:Weight Loss