非裔美国人和尼日利亚人认知功能的 informant 评分的验证分析。

Validation analysis of informant's ratings of cognitive function in African Americans and Nigerians.

作者信息

Shen Jianzhao, Gao Sujuan, Unverzagt Frederick W, Ogunniyi Adesola, Baiyewu Olusegun, Gureje Oye, Hendrie Hugh C, Hall Kathleen S

机构信息

Department of Medicine, Indiana University School of Medicine, Indianapolis, 46202, USA.

出版信息

Int J Geriatr Psychiatry. 2006 Jul;21(7):618-25. doi: 10.1002/gps.1536.

DOI:10.1002/gps.1536

PMID:16802282

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3202708/

Abstract

OBJECTIVES

To examine informant validity using the Community Screening Interview for Dementia (CSI 'D') both cross-sectionally and longitudinally in two very different cultures and to explore the effects of informants and study participants' characteristics on the validity of informants' reports.

METHODS

Elderly African Americans age 65 years and older residing in Indianapolis, USA and elderly Yoruba Nigerians age 65 years and older residing in Ibadan, Nigeria were assessed on cognitive functioning using the CSI 'D' at baseline (1992-1993) and five-year follow-up (1997-1998). At baseline, the informant validity in both samples was evaluated against participants' cognitive tests using Pearson correlation and regular regression models. At follow-up, informants ratings on cognitive decline were assessed against participants' cognitive decline scores from baseline to follow-up using biserial correlation and logistic regressions.

RESULTS

At baseline, informants' reports on cognitive functioning significantly correlated with cognitive scores in both samples (Indianapolis:r = -0.43, p < 0.001; Ibadan:r = -0.47, p < 0.001). The participant-informant relationships significantly affected the informants' reports in the two samples with different patterns (p = 0.005 for Indianapolis and p < 0.001 for Ibadan) at a given level of cognitive functioning. African Americans spouses reported more cognitive problems, while siblings reported more problems for the Yoruba Nigerians. At follow-up, informants' ratings on cognitive decline significantly correlated with the cognitive decline scores (Indianapolis r = 0.38, p < 0.001; Ibadan r = 0.32, p < 0.001). The characteristics of study participants and informants had little impact on the informants' ratings on cognitive decline.

CONCLUSIONS

Informant reports are valid in assessing the cognitive functioning of study participants both cross-sectionally and longitudinally in two very different cultures, languages and environments.

摘要

目的

在两种截然不同的文化背景下，对痴呆症社区筛查访谈（CSI 'D'）进行横断面和纵向研究，以检验信息提供者的效度，并探讨信息提供者及研究参与者的特征对信息提供者报告效度的影响。

方法

对居住在美国印第安纳波利斯市的65岁及以上非裔美国老年人以及居住在尼日利亚伊巴丹市的65岁及以上约鲁巴族尼日利亚老年人，在基线期（1992 - 1993年）和五年随访期（1997 - 1998年）使用CSI 'D'评估其认知功能。在基线期，使用Pearson相关性分析和常规回归模型，对照参与者的认知测试评估两个样本中信息提供者的效度。在随访期，使用双列相关性分析和逻辑回归，对照参与者从基线期到随访期的认知衰退得分，评估信息提供者对认知衰退的评分。

结果

在基线期，两个样本中信息提供者关于认知功能的报告与认知得分显著相关（印第安纳波利斯：r = -0.43，p < 0.001；伊巴丹：r = -0.47，p < 0.001）。在给定的认知功能水平上，参与者与信息提供者的关系在两个样本中以不同模式显著影响信息提供者的报告（印第安纳波利斯p = 0.005，伊巴丹p < 0.001）。非裔美国配偶报告的认知问题更多，而约鲁巴族尼日利亚人的兄弟姐妹报告的问题更多。在随访期，信息提供者对认知衰退的评分与认知衰退得分显著相关（印第安纳波利斯r = 0.38，p < 0.001；伊巴丹r = 0.32，p < 0.001）。研究参与者和信息提供者的特征对信息提供者对认知衰退的评分影响很小。