Ueno M, Shimazu T, Sawada N, Tsugane S, Kawaguchi Y
Department of Oral Health Promotion, Tokyo Medical and Dental University, Tokyo, Japan.
Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan.
J Oral Rehabil. 2018 May;45(5):393-398. doi: 10.1111/joor.12615. Epub 2018 Feb 18.
Self-reported measures of oral health are often used to assess oral health in populations or groups, but their validity or reliability needs repeated confirmation. The objective of this cross-sectional study was to evaluate the validity of self-reported tooth counts and masticatory status, using data obtained from a sample of Japanese adults. A total of 2356 adults aged 40 to 75 years participated in a questionnaire survey and a clinical oral examination from 2013 through 2016. Self-reported measures were compared with clinically measured values. For tooth counts, mean clinical and self-reported tooth counts in all participants were 23.68 and 23.78 teeth, and no significant difference was detected. Spearman's, Pearson's and intra-class correlation coefficients between clinical and self-reported tooth counts were 0.771, 0.845 and 0.843, respectively. According to the Bland-Altman analysis, the mean difference between clinical and self-reported tooth counts was -0.098 (95% CI: -0.242, 0.047). The upper limit of agreement was 6.919 (95% CI: 6.669, 7.169), and the lower limit of agreement was -7.115 (95% CI: -7.365, -6.865). No significant fixed or proportional bias was observed. For masticatory status, the crude or age- and gender-adjusted mean numbers of total teeth, posterior teeth and 3 kinds of functional tooth units significantly decreased with the deterioration of masticatory status. This study indicated that self-reports were within an acceptable range of clinical measures. Therefore, self-reports were considered valid alternatives to clinical measures to estimate tooth counts and masticatory status in a current Japanese adult population.
自我报告的口腔健康测量方法常用于评估人群或群体的口腔健康状况，但其有效性或可靠性需要反复验证。这项横断面研究的目的是利用从日本成年人样本中获得的数据，评估自我报告的牙齿数量和咀嚼状态的有效性。2013年至2016年，共有2356名40至75岁的成年人参与了问卷调查和临床口腔检查。将自我报告的测量结果与临床测量值进行比较。对于牙齿数量，所有参与者的临床平均牙齿数量和自我报告的牙齿数量分别为23.68颗和23.78颗，未检测到显著差异。临床和自我报告的牙齿数量之间的斯皮尔曼、皮尔逊和组内相关系数分别为0.771、0.845和0.843。根据布兰德-奥特曼分析，临床和自我报告的牙齿数量之间的平均差异为-0.098（95%CI：-0.242，0.047）。一致性上限为6.919（95%CI：6.669，7.169），一致性下限为-7.115（95%CI：-7.365，-6.865）。未观察到显著的固定或比例偏差。对于咀嚼状态，随着咀嚼状态的恶化，总牙齿、后牙和3种功能牙单位的粗略或年龄和性别调整后的平均数量显著减少。这项研究表明，自我报告在临床测量的可接受范围内。因此，自我报告被认为是估计当前日本成年人口牙齿数量和咀嚼状态的临床测量的有效替代方法。
