title: Effects of environmental intervention in workplace cafeterias on vegetable consumption by male workers.
abstract: OBJECTIVE
  To assess the effects of an environmental intervention based on the transtheoretical model to increase access to nutritional information about vegetable consumption in workplace cafeterias.
  
  
  METHODS
  Nonrandomized controlled trial.
  
  
  METHODS
  Sixteen workplaces with cafeterias in Niigata, Japan, were assigned to intervention (n = 8) or comparison sites (n = 8).
  
  
  METHODS
  A total of 349 Japanese male workers aged 20-59 years, who visited the cafeterias ≥ 3 times/wk.
  
  
  METHODS
  For the intervention group, 12 types of table tents containing information on increasing vegetable consumption, based on the transtheoretical model stages and processes of change, were distributed to cafeterias for 24 weeks in 2009. Information was presented according to the sequence suggested by the stages of change.
  
  
  METHODS
  Vegetable consumption in the cafeteria and per day and stage of change were assessed using self-administered questionnaires.
  
  
  METHODS
  Differences between groups were tested using a generalized linear model adjusted for age, work environment, and position.
  
  
  RESULTS
  The difference in the stage of change was not statistically significantly different (P = .05), but the intervention group (n = 181) had increased vegetable consumption in the cafeteria (+0.18 servings; P = .01) and per day (+0.32 servings; P = .01) vs the comparison group.
  
  
  CONCLUSIONS
  The findings suggest a beneficial effect of providing access to nutrition information about vegetable consumption as an environmental intervention in workplace cafeterias.
authors: Department of Health and Nutrition, Niigata University of Health and Welfare, Niigata, Japan. Electronic address: kushida@nuhw.ac.jp.
authors: Osamu
authors: O
authors: Kushida
authors: Department of Health and Nutrition, Niigata University of Health and Welfare, Niigata, Japan; Department of Health and Nutrition, University of Niigata Prefecture, Niigata, Japan.
authors: Nobuko
authors: N
authors: Murayama
mesh_terms: D000328:Adult; D004032:Diet / Q000379:methods*; D004777:Environment; D005247:Feeding Behavior; D006266:Health Education / Q000379:methods*; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D011795:Surveys and Questionnaires; D014675:Vegetables; D017132:Workplace; D055815:Young Adult
keywords: cafeteria; environmental intervention; transtheoretical model; vegetables; workplace