Oral diseases produce enormous productivity loss. However, epidemiological evidence of work stress and tooth loss is scarce. The aim of this study was to examine the association of work stress, according to effort-reward imbalance (ERI), with tooth loss. We conducted a cross-sectional study using data obtained between 2010 and 2011 in Japan. This study included 1,195 employees aged 25-50 years old (response rate=32%). The dependent variable was self-reported tooth loss (having or not). The independent variable was a dichotomized ERI ratio (>1.4 and ≤1.4). Age, sex, sociodemographic variables, work-related factors, and health-related variables were adjusted. Psychological distress was used as a potential mediator. We also examined an additive interaction between support from supervisors and ERI. The median age was 37, and 48% were women. After adjusting for the covariates, ERI was still associated with tooth loss (prevalence ratio=1.20 [95% confidence interval=1.01, 1.42] from Poisson regression models with a robust error variance). Psychological distress partially explained the association, and support from supervisors significantly attenuated the association. In conclusion, high ERI ratio was still associated with an increased risk of tooth loss among working adults.

中文翻译：

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工作和牙齿脱落方面的努力奖赏失衡：来自J-SHINE项目的横断面研究。

口腔疾病造成巨大的生产力损失。但是，缺乏工作压力和牙齿脱落的流行病学证据。这项研究的目的是检查根据工作量奖励不平衡（ERI）与牙齿脱落相关的工作压力。我们使用2010年至2011年在日本获得的数据进行了横断面研究。这项研究纳入了1195名年龄在25至50岁之间的员工（回应率= 32％）。因变量是自我报告的牙齿脱落（有无）。自变量是二分的ERI比（> 1.4和≤1.4）。年龄，性别，社会人口统计学变量，与工作有关的因素和与健康有关的变量均已调整。心理困扰被用作潜在的调解人。我们还检查了主管和ERI之间的加性互动。中位年龄是37岁，女性占48％。在对协变量进行调整后，ERI仍与牙齿脱落有关（流行率= 1.20 [95％置信区间= 1.01，1.42]（来自具有强大误差方差的Poisson回归模型））。心理困扰部分解释了这种联系，上司的支持大大削弱了这种联系。结论是，高ERI比率仍与工作成年人牙齿脱落的风险增加有关。