title: Development and Application of a Plant-Based Diet Scoring System for Japanese Patients with Inflammatory Bowel Disease.
abstract: Plant-based diets (PBDs) are a healthy alternative to westernized diets. A semivegetarian diet, a PBD, has been shown to prevent a relapse in Crohn disease. However, there is no way to measure adherence to PBDs.
  
  
  
  To develop a simple way of evaluating adherence to a PBD for Japanese patients with inflammatory bowel disease (IBD).
  
  
  
  PBD scores were assigned according to the frequency of consumption provided on a food-frequency questionnaire, obtained on hospitalization for 159 patients with ulcerative colitis and 70 patients with Crohn disease. Eight items considered to be preventive factors for IBD were scored positively, and 8 items considered to be IBD risk factors were scored negatively. The PBD score was calculated from the sum of plus and minus scores. Higher PBD scores indicated greater adherence to a PBD. The PBD scores were evaluated on hospitalization and 2 years after discharge for 22 patients with Crohn disease whose dietary pattern and prognosis were established.
  
  
  
  Plant-Based Diet score.
  
  
  
  The PBD scores differed significantly, in descending order, by dietary type: pro-Japanese diet, mixed type, and pro-westernized diet (Wilcoxon/Kruskal-Wallis test). The PBD scores in the ulcerative colitis and Crohn disease groups were 10.9 ± 9.5 and 8.2 ± 8.2, respectively. For patients with Crohn disease, those with long-term remission and normal C-reactive protein concentration were significantly more likely to have PBD scores of 25 or greater than below 25 (χ2).
  
  
  
  The PBD score is a valid assessment of PBD dietary adherence.
authors: Chief of the Inflammatory Bowel Disease Section at Akita City Hospital in Japan. mchiba@m2.gyao.ne.jp.
authors: Mitsuro
authors: M
authors: Chiba
authors: Chief of the Gastroenterology Division at Akita City Hospital in Japan. ac060950@akita-city-hp.jp.
authors: Kunio
authors: K
authors: Nakane
authors: Lecturer in the Life and Culture Department, Seirei Women's Junior College in Japan. takayama@seirei-wjc.ac.jp.
authors: Yuko
authors: Y
authors: Takayama
authors: Gastroenterologist at Akita City Hospital in Japan. ks_st04045@yahoo.co.jp.
authors: Kae
authors: K
authors: Sugawara
authors: Gastroenterologist at Akita City Hospital in Japan. ac120502@akita-city-hp.jp.
authors: Hideo
authors: H
authors: Ohno
authors: Gastroenterologist at Akita City Hospital in Japan. acd00377@akita-city-hp.jp.
authors: Hajime
authors: H
authors: Ishii
authors: Gastroenterologist at Akita City Hospital in Japan. satokotsuda07@gmail.com.
authors: Satoko
authors: S
authors: Tsuda
authors: Chief of the Gastrointestinal Endoscopy Section at Akita City Hospital in Japan. ac070289@akita-city-hp.jp.
authors: Tsuyotoshi
authors: T
authors: Tsuji
authors: Gastroenterologist and the Director of Akita City Hospital in Japan. ac990892@akita-city-hp.jp.
authors: Masafumi
authors: M
authors: Komatsu
authors: Gastroenterologist at Nakadori General Hospital in Akita, Japan. nrp05157@nifty.com.
authors: Takeshi
authors: T
authors: Sugawara
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002097:C-Reactive Protein / Q000378:metabolism; D002648:Child; D003424:Crohn Disease / Q000097:blood / Q000178:diet therapy*; D004032:Diet / Q000592:standards*; D014676:Diet, Vegetarian; D007887:Fabaceae; D005247:Feeding Behavior; D005260:Female; D005638:Fruit; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D010349:Patient Compliance; D010944:Plants; D012074:Remission Induction; D011795:Surveys and Questionnaires; D014675:Vegetables; D055815:Young Adult
chemical_list: D002097:C-Reactive Protein