Evans R W, Beck D J, Brown R H, Silva P A
Community Dent Oral Epidemiol. 1984 Feb;12(1):5-9. doi: 10.1111/j.1600-0528.1984.tb01401.x.
This article examines the relationship between fluoridation and socioeconomic status on caries experience, as measured by the dmf index, in 5-yr-old New Zealand children in the city of Dunedin (fluoridated in 1967) and in adjacent non-fluoride communities. The children were subdivided into six socioeconomic status groups (SES 1, professional and managerial-SES 6, unskilled workers), but then for simplicity they were combined to form three groups. A two-way analysis of variance demonstrated that interaction between fluoride history and socioeconomic status was not significant. In all three SES groups, dmf was higher in non-fluoride communities, but the difference was significant only in SES group (5&6) (P less than 0.01). Caries experience increased with decreasing socioeconomic status in both fluoride and non-fluoride communities, but this effect was only significant between SES groups (1&2) and (3&4) in the fluoridated community (P less than 0.05), and between SES groups (3&4) and (5&6) in non-fluoride communities (P less than 0.01). These results are compared with those of similar studies, and it is concluded that so far, the relationship between fluoridation and socioeconomic status on caries experience remains equivocal. A note of caution is sounded regarding the interpretation of such results, and the difficulties faced when comparing studies is discussed.
本文考察了新西兰达尼丁市（于1967年开始实施氟化）及相邻非氟化社区中5岁儿童的龋病经历（以dmf指数衡量）与氟化和社会经济地位之间的关系。这些儿童被细分为六个社会经济地位组（SES 1，专业和管理人员；SES 6，非技术工人），但为了简化，将其合并为三个组。双向方差分析表明，氟化史与社会经济地位之间的交互作用不显著。在所有三个社会经济地位组中，非氟化社区的dmf更高，但差异仅在SES组（5&6）中显著（P小于0.01）。在氟化和非氟化社区中，龋病经历均随社会经济地位的降低而增加，但这种效应仅在氟化社区的SES组（1&2）和（3&4）之间显著（P小于0.05），以及在非氟化社区的SES组（3&4）和（5&6）之间显著（P小于0.01）。将这些结果与类似研究的结果进行了比较，得出的结论是，到目前为止，氟化与社会经济地位对龋病经历的关系仍不明确。文中对这类结果的解释提出了警示，并讨论了比较研究时面临的困难。
