Predictors of performance on the MMSE and the DRS-2 among American Indian elders.
Predictors of performance on the MMSE and the DRS-2 among American Indian elders.
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美洲印第安人老年人 MMSE 和 DRS-2 表现的预测因素。
DOI:
10.1176/jnp.2010.22.4.417
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
Arciniegas,DavidB
中科院分区:
文献类型:
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作者:
Jervis,LoriL;Fickenscher,Alexandra;Beals,Janette;Cullum,CMunro;Novins,DouglasK;Manson,SperoM;Arciniegas,DavidB
A handful of small, non-population-based, empirical studies have examined dementia among American Indian and Canadian First Nations people. 3–5, 18–24 Overall, most studies of cognitive test performance to date typically have shown little difference between Native and non-Native samples, although most of these investigations have been conducted with relatively acculturated tribes, 3–5, 22, 25 some of whom also have relatively low levels of genetic American Indian heritage. 21 This is important because acculturation status may affect elders’ performance on cognitive tests. 26 An earlier investigation by this research team27 examined older American Indians’ scores on the Mini-Mental State Examination (MMSE) 28 and the Mattis Dementia Rating Scale—Second Edition (DRS-2) 29, 30 compared with age-and education-adjusted norms developed with 18,000 community-dwelling participants (age 18–85 years) in the NIMH Epidemiological Catchment Area Program survey. 31 For the purpose of that investigation, possible cognitive impairment was defined as performance greater than 2 standard deviations below the mean of each participant’s corresponding age-and education-matched cohort. Utilizing this criterion, 10.9% of the sample had possible cognitive impairment. For the DRS-2, no large-scale, populationrepresentative norms were available, so the most demographically comparable published norms available were employed. These were age-adjusted norms derived from 36 European American and 53 African American urban norms32 with fairly similar age and education levels (mean age74 years [SD5. 9], range62–95; mean education10. 5 years [SD3. 6]). 32 Again employing the criterion of performance greater than two standard deviations below the mean of each participant’s DRS-2 score to an age-matched cohort to define possible impairment, 27.4% of elders had possible cognitive impairment. Gender was significantly associated with performance on both tests and education with the DRS-2, the latter finding accounted for by the lack of education adjustments in the Vangel & Lichtenberg 1995 norms. The article concluded that the examination of the possible effects of ethnicity, socioeconomic status, type/character of education, and language on MMSE and DRS-2 performance is essential in understanding cognitive test performance and developing culturally appropriate norms. 27