出生时的收入与成年后因龋齿导致的牙齿缺失：1982 年佩洛塔斯出生队列研究。
Income at birth and tooth loss due to dental caries in adulthood: The 1982 Pelotas birth cohort.
机构信息
Section of Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.
Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.
出版信息
Oral Dis. 2020 Oct;26(7):1494-1501. doi: 10.1111/odi.13373. Epub 2020 May 26.
OBJECTIVE
To estimate the effect of income at birth on adulthood tooth loss due to dental caries in 539 adults from the 1982 Pelotas birth cohort.
METHODS
Family income was collected at birth. Tooth loss was clinically assessed when individuals were aged 31. Dental visit and oral hygiene at age 25 were considered mediators. Confounders included maternal skin color, and individual's skin color, sex, and income in adulthood. Marginal structural modeling was used to estimate the controlled direct effect of income at birth on tooth loss due to dental caries that was neither mediated by the use of dental service nor oral hygiene.
RESULTS
Forty-three percent of the individuals of low income at birth lost one/two teeth, and 23% lost three or more; among those non-poor, the prevalence was 30% and 14%, respectively. Poor individuals at birth had a 70% higher risk for missing teeth in adulthood than those non-poor. The risk of losing one/two (risk ratio 1.68) and three or more teeth (risk ratio 3.84) was also higher among those of low income at birth.
CONCLUSIONS
Economic disadvantage at birth had an effect on tooth loss due to dental caries at age 31 not mediated by individual risk factors.
目的
在 1982 年佩洛塔斯出生队列的 539 名成年人中，估计出生时的收入对因龋齿导致的成年后牙齿缺失的影响。
方法
在出生时收集家庭收入。当个体年龄为 31 岁时，对牙齿缺失情况进行临床评估。将 25 岁时的牙科就诊和口腔卫生情况视为中介因素。混杂因素包括母亲的肤色以及个体在成年后的肤色、性别和收入。采用边缘结构模型估计出生时收入对因龋齿导致的牙齿缺失的控制直接效应，该效应既不受牙科服务使用的影响，也不受口腔卫生的影响。
结果
43%的出生时收入较低的个体缺失一颗/两颗牙齿，23%的个体缺失三颗或更多牙齿；而在非贫困个体中，这一比例分别为 30%和 14%。与非贫困个体相比，出生时贫困的个体在成年后患缺牙的风险要高出 70%。出生时收入较低的个体缺失一颗/两颗（风险比 1.68）和三颗或更多牙齿（风险比 3.84）的风险也更高。
结论
出生时的经济劣势对 31 岁时因龋齿导致的牙齿缺失有影响，这种影响不受个体风险因素的影响。
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