Dietary Risk Factors for Inflammatory Bowel Disease: A Multicenter Case‐Control Study in Japan

  title={Dietary Risk Factors for Inflammatory Bowel Disease: A Multicenter Case‐Control Study in Japan},
  author={Naomasa Sakamoto and Suminori Kono and Kenji Wakai and Yoshihiro Fukuda and Masamichi Satomi and Takashi Shimoyama and Yutaka Inaba and Yoshihiro Miyake and Satoshi Sasaki and Kazushi Okamoto and Gen Kobashi and Masakazu Washio and Tetsuji Yokoyama and Chigusa Date and Heizo Tanaka},
  journal={Inflammatory Bowel Diseases},
&NA; To evaluate the role of dietary factors in the etiology of inflammatory bowel disease (IBD), we conducted a multicenter hospital‐based case‐control study in a Japanese population. Cases were IBD patients aged 15 to 34 years [ulcerative colitis (UC) 111 patients; Crohn's disease (CD) 128 patients] within 3 years after diagnosis in 13 hospitals. One control subject was recruited for each case who was matched for sex, age, and hospital. A semiquantitative food frequency questionnaire was used… 
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  • J. Kurata
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