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目的 :探讨MMSE的适用人群及影响因素。方法 :通过随机整群分层抽样 ,对 4 92 1名 5 5岁或以上的西安市城乡居民进行MMSE测查。分析MMSE在不同人群中的得分特征对痴呆的阳性预测值和分析影响MMSE得分的因素。结果 :MMSE得分在不同年龄、不同文化程度、总体人群中都呈现负偏态 ,尖峭峰型分布。在年龄较轻 (70岁以下 )、文化程度偏高 (初中或以上 )的人群中偏态分布最明显 ,痴呆的检出率较低 ;而在年龄偏大 (70岁以上 ) ,文化程度偏低 (小学及以下 )的人群中接近正态分布 ,痴呆的检出率较高。年龄、性别、受教育年限、听力下降、日常生活能力对MMSE得分有显著影响。结论 :MMSE量表最适用于年龄偏大 (70岁以上 ) ,文化程度偏低 (小学或以下 )的人群 ,对痴呆的筛选能力大 ;而对于年龄偏小 ,文化程度偏高的人群 ,MMSE的鉴别筛选力较低。
Objective: To explore the applicable population of MMSE and its influencing factors. METHODS: MMSE was performed on 4 92 1 urban and rural residents aged 55 years or older in Xi’an by stratified random sampling. The positive predictive value of MMSE score characteristics in different populations to dementia was analyzed and the factors influencing MMSE scores were analyzed. Results: The scores of MMSE showed negative skewness and sharp peaks in different age groups, different education levels and overall population. In the younger age group (70 years old), people with high educational level (junior high school or above) have the most obvious skewed distribution and the low detection rate of dementia. In older age group (over 70 years old) Low (primary and below) people close to normal distribution, the detection rate of dementia higher. Age, gender, years of education, hearing loss, and daily living ability have significant effects on MMSE scores. Conclusion: The MMSE scale is most suitable for people older than 70 years old with low education level (primary school or below) and screening ability for dementia. For those with younger age and higher education level, MMSE The identification of screening power is low.