title: Accuracy of comparing bone quality to chocolate bars for patient information purposes: observational study.
abstract: OBJECTIVE
  To test whether standard information for patients using Crunchie and Aero chocolate bars to explain bone health and risk of fracture is robust.
  
  
  METHODS
  Observational study.
  
  
  METHODS
  Domestic kitchen in rural west Wales.
  
  
  METHODS
  10 Crunchie bars and 10 Aero bars.
  
  
  METHODS
  Fracture after falls from varying heights.
  
  
  RESULTS
  Both Crunchie and Aero bars exhibited the same T and Z scores for bone density. Crunchie bars had a lower chocolate mass index than the Aero bars. Crunchie bars are more liable to fracture.
  
  
  CONCLUSIONS
  Using Crunchie and Aero chocolate bars to explain bone structure to patients may be visually attractive but oversimplifies the situation.
authors.affiliation: Bronglais General Hospital, Aberystwyth SY23 1ER. phil.jones@ceredigion-tr.wales.nhs.uk
authors.forename: Phil
authors.initials: P
authors.lastname: Jones
authors.forename: Sarah
authors.initials: S
authors.lastname: Jones
authors.forename: Debbie
authors.initials: D
authors.lastname: Stone
mesh_terms: D000058:Accidental Falls; D015519:Bone Density; D002182:Candy; D050723:Fractures, Bone / Q000503:physiopathology*; D006801:Humans; D008953:Models, Anatomic; D010353:Patient Education as Topic / Q000379:methods*; D012680:Sensitivity and Specificity