山东省2485名城市老年人认知功能调查

A cross - sectional study on cognitive functioning of the elderly people in urban area

目的 了解城市老年人的认知状况,初步探讨其相关因素。方法 采用分层抽样的方法对山东省8个城市65岁及以上老人进行抽样。认知功能由韦氏成人智力测验量表-数字广度测验(DST)及简明智力状态检查(MMSE)得分评定。对资料进行t检验、方差分析等统计分析。结果 共抽取2485名老人,其DST、MMSE均分(±S)各为8.64±2.54、23.64±6.14,男性均高于女性(t检验,P<0.01)。认知功能与年龄、教育、日常生活能力、社会支持、职业、婚姻状况等因素相关。结论 城市老年人认知功能偏低,与生物、社会、心理等多种因素的影响有关。

Objective To explore cognitive functioning of the elderly people and the related factors in the urban area. Methods Elderly people aged 65 years or over by multistage sampling in 8 cities of Shandong Province were interviewed at home by trained interviewer. All the subjects were tested with the digit span subtest(DST) of Wechsler Adult Intelligence Scale and the Mini - Mental State Examination ( MMSE) .T- test, analysis of variance and Pearson correlation were applyed in the analysis. Results The mean DST and MMSE scores of the 2485 elderly people were 8.64 ±2.54 and 23.64 ±6.14 respectively, and the male had a higher score than the female( t test, P < 0.01) . Cognitive performance declined across the age groups 65 - 69,70 - 74,75 - 79,80 - 84, and 85 - 94 years on both the DST and the MMSE. The level of cognitive functioning was positively associated with the higher education level. Cognitive performance was correlated with activities of daily living and social support. Higher cognitive performance was also found in intellectuals and in those who lived with the spouse. Conclusions A lower - level cognitive functioning is in the elderly people in urban area, which correlates with biological,social and psychological factors.