This study aimed to identify factors associated with poor oral health status, as indicated by salivary occult blood (SOB) level, in community-dwelling older adults. A total of 592 community-dwelling participants aged 70 to 84 years with 20 to 28 teeth participated in the survey and SOB evaluation. Survey items included behaviors during dental visits, systemic diseases, smoking habit, cognitive function, and findings of intraoral examination. To identify factors associated with high SOB levels, binomial logistic regression analysis was performed after classifying participants as having high and low SOB on the basis of 75th-percentile SOB measurements. Presence of dental plaque (odds ratio [OR]: 2.26), poor subjective oral health (OR: 2.99) (for the age group 70 to 74 years), fewer remaining teeth (OR: 0.80), no dental visits during the previous year (OR: 2.80) (for the age group 75 to 79 years), and no dental visits during the previous year (OR: 3.93) (for the age group 80 to 84 years) were significantly associated with high SOB levels. The factors associated with high SOB, which indicates poor oral health status, differed by age group in community-dwelling older adults. Therefore, oral health management may improve oral health by providing different age groups with care that accounts for their physical and social functional abilities.

这项研究的目的是确定社区居民中老年人唾液潜血（SOB）水平与口腔健康状况不佳相关的因素。共有592位年龄在70至84岁，牙齿20至28位的社区居民参加了调查和SOB评估。调查项目包括牙齿访视时的行为，全身性疾病，吸烟习惯，认知功能和口腔检查结果。为了确定与SOB高水平相关的因素，在基于75％的SOB测量值将参与者分为高和低SOB之后，进行了二项式逻辑回归分析。存在牙菌斑（比值比[OR]：2.26），主观口腔健康状况不佳（OR：2.99）（年龄在70至74岁之间），剩余牙齿较少（OR：0.80），与上一年度（OR：2.80）（对于75至79岁的年龄组）没有牙科访问，并且上一年（OR：3.93）（针对80至84岁的年龄组）没有牙科访问与高SOB水平。与高SOB有关的因素表明口腔健康状况不佳，在社区居住的老年人中因年龄组而异。因此，口腔健康管理可以通过向不同年龄段的人们提供照顾他们身体和社会功能的护理来改善口腔健康。在社区居住的老年人中，年龄段有所不同。因此，口腔健康管理可以通过向不同年龄段的人们提供照顾他们身体和社会功能的护理来改善口腔健康。在社区居住的老年人中，年龄段有所不同。因此，口腔健康管理可以通过向不同年龄段的人们提供照顾他们身体和社会功能的护理来改善口腔健康。