Abstract：
Early detection, treatment, and care are important for the prevention of dementia. Though olfactory impairment has been reported to be associated with mild cognitive impairment (MCI), there are few reports involving community-dwelling older adults with no difficulty in daily life in Japan.
This study aimed to identify the frequency of MCI in community-dwelling elderly people attending community salons in a city with a high aging population, and to determine the usefulness of a pocket olfactory discrimination test.
We recruited 268 independent older adults attending community salons. The Japanese version of the MCI Screen was used to evaluate cognitive function, defining MCI as <49.8 out of 100 scores of the memory performance index (MPI). The Japanese version of the University of Pennsylvania Smell Identification Test (UPSIT-J) was used for olfactory discrimination and the number of correct answers out of 4 questions was noted.
Of the salon participants, 138 (51.5%) were classified as having MCI. As the number of correct answers on the olfactory test decreased, the percentage of participants with MCI increased. The MPI score of the low UPSIT score group was significantly lower than that of the high UPSIT score group.
This study revealed that approximately half of the elderly local residents living without daily problems were suspected of having MCI. The UPSIT-J-4 is a simple olfactory identification test, and can be used at any time and any place. It is useful for screening cognitive function via olfactory identification in a salon-like setting.
This study aimed to identify the frequency of MCI in community-dwelling elderly people attending community salons in a city with a high aging population, and to determine the usefulness of a pocket olfactory discrimination test.
We recruited 268 independent older adults attending community salons. The Japanese version of the MCI Screen was used to evaluate cognitive function, defining MCI as <49.8 out of 100 scores of the memory performance index (MPI). The Japanese version of the University of Pennsylvania Smell Identification Test (UPSIT-J) was used for olfactory discrimination and the number of correct answers out of 4 questions was noted.
Of the salon participants, 138 (51.5%) were classified as having MCI. As the number of correct answers on the olfactory test decreased, the percentage of participants with MCI increased. The MPI score of the low UPSIT score group was significantly lower than that of the high UPSIT score group.
This study revealed that approximately half of the elderly local residents living without daily problems were suspected of having MCI. The UPSIT-J-4 is a simple olfactory identification test, and can be used at any time and any place. It is useful for screening cognitive function via olfactory identification in a salon-like setting.
摘要：
及早发现,治疗,和护理对于预防痴呆症很重要。尽管据报道嗅觉障碍与轻度认知障碍（MCI）有关，在日本，很少有报道涉及社区居住的老年人，他们的日常生活没有困难。
这项研究的目的是确定MCI在社区居住的老年人参加社区沙龙在一个高人口老龄化的城市的频率，并确定口袋嗅觉辨别测试的有用性。
我们招募了268名独立的老年人参加社区沙龙。日本版本的MCI屏幕用于评估认知功能，将MCI定义为存储器性能指标(MPI)的100个得分中的<49.8。宾夕法尼亚大学气味识别测试（UPSIT-J）的日语版本用于嗅觉识别，并指出了4个问题中正确答案的数量。
在沙龙参与者中,138（51.5%）被归类为患有MCI。随着嗅觉测试中正确答案的数量减少，MCI参与者的百分比增加。低UPSIT评分组的MPI评分显著低于高UPSIT评分组。
这项研究表明，大约一半没有日常生活问题的当地老年人被怀疑患有MCI。UPSIT-J-4是一种简单的嗅觉识别测试，可以在任何时间、任何地点使用。它可用于在类似沙龙的环境中通过嗅觉识别来筛选认知功能。
这项研究的目的是确定MCI在社区居住的老年人参加社区沙龙在一个高人口老龄化的城市的频率，并确定口袋嗅觉辨别测试的有用性。
我们招募了268名独立的老年人参加社区沙龙。日本版本的MCI屏幕用于评估认知功能，将MCI定义为存储器性能指标(MPI)的100个得分中的<49.8。宾夕法尼亚大学气味识别测试（UPSIT-J）的日语版本用于嗅觉识别，并指出了4个问题中正确答案的数量。
在沙龙参与者中,138（51.5%）被归类为患有MCI。随着嗅觉测试中正确答案的数量减少，MCI参与者的百分比增加。低UPSIT评分组的MPI评分显著低于高UPSIT评分组。
这项研究表明，大约一半没有日常生活问题的当地老年人被怀疑患有MCI。UPSIT-J-4是一种简单的嗅觉识别测试，可以在任何时间、任何地点使用。它可用于在类似沙龙的环境中通过嗅觉识别来筛选认知功能。
