Section of Social Medicine, Department of Public Health, University of Copenhagen, Copenhagen, Denmark.
Danish Aging Research Center, University of Southern Denmark, Odense, Denmark.
J Am Geriatr Soc. 2017 Jan;65(1):194-199. doi: 10.1111/jgs.14513. Epub 2016 Nov 7.
To examine the possible influence of cognitive ability and education at age 50 or 60 on number of teeth at age 70.
Community-dwelling population in Copenhagen, Denmark.
Men and women born in 1914 (N = 302).
Cognitive ability was assessed using the Wechsler Adult Intelligence Scale at age 50 or 60. A global cognitive ability measure was used as a continuous measure and according to tertile. Information on education was gathered using a questionnaire at age 50 or 60. A clinical oral examination took place at age 70, and oral health was measured according to number of teeth (<6 vs ≥6). Baseline covariates were smoking, alcohol, sex, and income.
Logistic regression analyses revealed that greater cognitive ability and educational attainment had a protective effect against risk of tooth loss. The associations were significant and persisted after adjusting for confounders and a two-way interaction between cognitive ability and education.
Higher education level and cognitive ability measured at age 50 or 60 were associated with having more teeth at age 70. Whether these findings are due to the interaction of these factors with oral health, related socioeconomic factors, or other factors remains to be studied.
研究 50 或 60 岁时的认知能力和教育程度对 70 岁时牙齿数量的可能影响。
丹麦哥本哈根的社区居民。
1914 年出生的男性和女性（N=302）。
在 50 或 60 岁时使用韦氏成人智力量表评估认知能力。采用全球认知能力衡量标准作为连续衡量标准，并按三分位数进行划分。在 50 或 60 岁时使用问卷收集有关教育的信息。在 70 岁时进行临床口腔检查，并根据牙齿数量（<6 颗与≥6 颗）衡量口腔健康。基线协变量包括吸烟、饮酒、性别和收入。
逻辑回归分析显示，较高的认知能力和教育程度对牙齿缺失风险具有保护作用。这些关联具有统计学意义，并在调整混杂因素和认知能力与教育之间的双向相互作用后仍然存在。
在 50 或 60 岁时接受的较高教育水平和认知能力与 70 岁时拥有更多牙齿相关。这些发现是否归因于这些因素与口腔健康、相关社会经济因素或其他因素的相互作用，仍有待研究。
