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Oral Health and Risk of Upper Gastrointestinal Cancers in a Large Prospective Study From a High-Risk Region: Golestan Cohort Study Publisher Pubmed



Yano Y1 ; Abnet CC1 ; Poustchi H2, 3 ; Roshandel G4 ; Pourshams A2, 3 ; Islami F3, 5 ; Khoshnia M4 ; Amiriani T4 ; Norouzi A4 ; Kamangar F6 ; Boffetta P7, 8 ; Brennan P9 ; Dawsey SM1 ; Vogtmann E1 Show All Authors
Authors
  1. Yano Y1
  2. Abnet CC1
  3. Poustchi H2, 3
  4. Roshandel G4
  5. Pourshams A2, 3
  6. Islami F3, 5
  7. Khoshnia M4
  8. Amiriani T4
  9. Norouzi A4
  10. Kamangar F6
  11. Boffetta P7, 8
  12. Brennan P9
  13. Dawsey SM1
  14. Vogtmann E1
  15. Malekzadeh R2, 3
  16. Etemadi A1, 3
Show Affiliations
Authors Affiliations
  1. 1. Division of Cancer Epidemiology and Genetics, NCI, NIH, Bethesda, MD, United States
  2. 2. Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Diges-tive Oncology Research Center, Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran
  5. 5. Data Science Program, American Cancer Society, Atlanta, GA, United States
  6. 6. Department of Biology, School of Computer, Mathematical, and Natural Sciences, Morgan State University, Baltimore, MD, United States
  7. 7. Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, United States
  8. 8. Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
  9. 9. Section of Genetics, International Agency for Research on Cancer, World Health Organization, Lyon, France

Source: Cancer Prevention Research Published:2021


Abstract

Tooth loss and periodontal disease have been associated with several cancers, and poor oral health may be an important risk factor for upper gastrointestinal (UGI, i.e., esophageal and gastric) cancers. We assessed the relationship between oral health and UGI cancers using a large prospective study of over 50,000 adults living in Golestan Province, Iran, a high-incidence area for these cancers. Hazard ratios (HRs) and 95% confidence intervals (CI) were estimated for the association between three different measures of oral health [frequency of tooth brushing; number of missing teeth; and the sum of decayed, missing, and filled teeth (DMFT)] and UGI cancers. During a median follow-up duration of 13 years, there were 794 incident UGI cancers (396 esophageal and 398 gastric cancers). Daily tooth brushing was associated with a decreased risk of developing both esophageal (HR ¼ 0.670; 95% CI: 0.486–0.924) and gastric (HR ¼ 0.741; 95% CI: 0.544–1.01) cancers (combined UGI cancer HR ¼ 0.697; 95% CI: 0.558–0.871) compared with never brushing. Tooth loss in excess of the loess smoothed, age- and sex-specific median number of teeth lost was significantly associated with esophageal (HR ¼ 1.64; 95% CI: 1.08–2.47) and gastric cancers (HR ¼ 1.58; 95% CI: 1.05–2.38). There were some adverse associations between DMFT and UGI cancers but most were not statistically significant. These results suggest increased risk of developing UGI cancers among individuals with poor oral health, and those who do not perform regular oral hygiene. Prevention Relevance: Poor oral health is associated with the risk of upper gastrointestinal cancers, and oral hygiene practices may help prevent these cancers. © 2021 American Association for Cancer Research.
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