Poor oral health is associated with an increased risk of esophageal squamous cell carcinoma - a population-based case-control study in China.

Abstract:

:To further examine the association between oral hygiene and esophageal squamous cell carcinoma (ESCC) risk and the effect modification of other exposures, we conducted a population-based case-control study between 2010 and 2012 in Taixing, China, a high-risk area for ESCC. Cases were primarily recruited from endoscopy units at local hospitals, supplemented by linkage to the local Cancer Registry. Control subjects were frequency matched to cases by sex and age (5-year groups) and were randomly selected from the Taixing Population Registry. For the current analysis, data from 616 histopathologically confirmed cases and 770 controls with complete information on oral hygiene were analyzed. Unconditional logistic regression models, including oral hygiene indicators and potential behavioral confounders, were used to derive odds ratios (ORs) and 95% confidence intervals (CIs). Tooth loss was only marginally significantly associated with ESCC risk (yes vs. no, OR = 1.29, 95% CI 0.94-1.74). However, the excess risk increased with increasing numbers of lost teeth (more than 6 teeth lost vs. none, OR = 1.48, 95% CI 1.04-2.11). Tooth brushing once or less per day, compared with tooth brushing twice or more per day, was associated with a 1.81-fold increased risk of ESCC. In the stratification analyses, the increased risks associated with these indicators of oral health were more pronounced in older subjects (age ≥ 70 years), women, non-smokers, and non-drinkers. Further studies are warranted to verify these findings and to explore the underlying mechanisms, e.g., changed oral microbiota, associated with poor oral hygiene.

journal_name

Int J Cancer

authors

Chen X,Yuan Z,Lu M,Zhang Y,Jin L,Ye W

doi

10.1002/ijc.30484

subject

Has Abstract

pub_date

2017-02-01 00:00:00

pages

626-635

issue

3

eissn

0020-7136

issn

1097-0215

journal_volume

140

pub_type

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