Age, Period and Cohort Trends in Caries of Permanent Teeth in Four Developed Countries
Age, Period and Cohort Trends in Caries of Permanent Teeth in Four Developed Countries
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DOI：
10.2105/ajph.2014.301869
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发表时间：
2014-07-01
影响因子：
12.7
通讯作者：
Sheiham, Aubrey
中科院分区：
文献类型：
--
作者：
Bernabe, Eduardo;Sheiham, Aubrey
目标。我们评估了年龄、时期和队列效应对4个不同人群恒牙龋患趋势的相对影响。我们使用了来自英格兰和威尔士、美国、日本和瑞典的数据，这些国家自20世纪60年代初以来定期进行了许多具有全国代表性的横断面调查。对于每个国家，龋齿经历的趋势（通过DMFT指数测量-蛀牙，缺失和补牙的数量）在年龄，时期和队列（APC）分析中使用偏最小二乘回归分析。年龄对龋齿的强烈影响表现在经历、时期和群体效应之外。直到青春期，蛀牙水平会增加；此后，成年后DMFT的增加幅度更大。与年龄效应相比，时间和队列效应对龋病经历的影响较小。除日本外，所有国家的人口DMFT得分都随时间而下降。在所有4个国家中，龋齿经历的队列效应呈现非线性模式，最老和最近几代人的龋齿水平略低。尽管近来儿童龋齿发病率显著下降，但龋齿水平随着年龄增长而增加，成人龋齿仍有问题。
Objectives. We assessed the relative influences of age, period, and cohort effects on trends in caries experience of permanent teeth in 4 different populations.Methods. We used data from England and Wales, United States, Japan, and Sweden in which numerous cross-sectional, nationally representative surveys have been conducted periodically since the early 1960s. For each country, trends in caries experience (measured by DMFT index-the number of decayed, missing, and filled permanent teeth) were analyzed in an age, period, and cohort (APC) analysis using partial least square regression.Results. A strong effect of age manifested in caries experience, period and cohort effects aside. Caries levels increased through to adolescence; thereafter, there was a larger increase in DMFT in adulthood. Compared with the aging effect, period and cohort effects on caries experience were small. Population DMFT scores decreased over time in all countries except Japan. Cohort effects on caries experience displayed a nonlinear pattern in all 4 countries, with slightly lower caries levels among the oldest and most recent generations.Conclusions. Despite marked recent declines in caries among children, caries levels increase with age and remain problematic in adults.