Identification of Environmental Factors Associated with Inflammatory Bowel Disease in a Southwestern Highland Region of China: A Nested Case-Control Study

• Junkun Niu ,

  Contributed equally to this work with: Junkun Niu, Jiarong Miao

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Jiarong Miao ,

  Contributed equally to this work with: Junkun Niu, Jiarong Miao

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Yuan Tang,

  Affiliation Department of Gastroenterology, The First People's Hospital of Qujing, Qujing, Yunnan Province, P. R. China

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• Qiong Nan,

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Yan Liu,

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Gang Yang,

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Xiangqian Dong,

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Qi Huang,

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Shuxian Xia,

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Kunhua Wang ,

  * E-mail: myldu@sina.com (YLM); wangkunhua1@medmail.com.cn (KHW)

  Affiliation Department of General Surgery, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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• Yinglei Miao

  * E-mail: myldu@sina.com (YLM); wangkunhua1@medmail.com.cn (KHW)

  Affiliation Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Yunnan Institute of Digestive Disease, Kunming, Yunnan Province, P. R. China

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