title: The case of the disappearing teaspoons: longitudinal cohort study of the displacement of teaspoons in an Australian research institute.
abstract: OBJECTIVE
  To determine the overall rate of loss of workplace teaspoons and whether attrition and displacement are correlated with the relative value of the teaspoons or type of tearoom.
  
  
  METHODS
  Longitudinal cohort study.
  
  
  METHODS
  Research institute employing about 140 people.
  
  
  METHODS
  70 discreetly numbered teaspoons placed in tearooms around the institute and observed weekly over five months.
  
  
  METHODS
  Incidence of teaspoon loss per 100 teaspoon years and teaspoon half life.
  
  
  RESULTS
  56 (80%) of the 70 teaspoons disappeared during the study. The half life of the teaspoons was 81 days. The half life of teaspoons in communal tearooms (42 days) was significantly shorter than for those in rooms associated with particular research groups (77 days). The rate of loss was not influenced by the teaspoons' value. The incidence of teaspoon loss over the period of observation was 360.62 per 100 teaspoon years. At this rate, an estimated 250 teaspoons would need to be purchased annually to maintain a practical institute-wide population of 70 teaspoons.
  
  
  CONCLUSIONS
  The loss of workplace teaspoons was rapid, showing that their availability, and hence office culture in general, is constantly threatened.
authors.affiliation: Centre for Epidemiology and Population Health Research, Macfarlane Burnet Institute for Medical Research and Public Health, GPO box 2284, Melbourne, Victoria, 3001, Australia.
authors.forename: Megan S C
authors.initials: MS
authors.lastname: Lim
authors.forename: Margaret E
authors.initials: ME
authors.lastname: Hellard
authors.forename: Campbell K
authors.initials: CK
authors.lastname: Aitken
mesh_terms: D000047:Academies and Institutes; D015331:Cohort Studies; D003297:Cooking and Eating Utensils / Q000706:statistics & numerical data*; D008137:Longitudinal Studies; D010865:Pilot Projects; D014739:Victoria