A New Scale Measuring Psychologic Impact of Genetic Susceptibility Testing for Alzheimer Disease

作者：Chung Winston W; Chen Clara A; Cupples L Adrienne; Roberts J Scott; Hiraki Susan C; Nair Anil K; Green Robert C; Stern Robert A^*

来源：Alzheimer Disease and Associated Disorders, 2009, 23(1): 50-56.

DOI：10.1097/wad.0b013e318188429e

• Alzheimer disease genetics
• genetic testing
• Alzheimer disease risk assessment

This paper describes the development and psychometric properties of it new scale for assessing the psychologic impact of genetic susceptibility testing for Alzheimer disease (AD). The new instrument. The REVEAL Impact of Genetic Testing for Alzheimer's disease (IGT-AD) was designed to examine the unique nature of genetic information and the disease course of AD. The scale was tested its it part of a multicenter clinical trial designed to evaluate the impact of AD risk assessment and data were collected from 276 participants in the study. Using ail iterative process of principal component analysis and Cronbach alpha, the final 16-item IGT-AD Was found to have a 2-factor structure with excellent internal reliability. Construct validity was established by patterns of correlation with other standardized self-reported measures. This scale should be useful in the identification of patients who maybe susceptible to the negative effects of receiving genetic information, monitoring of patients who have received genetic information, and its a tool for researchers who wish to study the effects of genetic susceptibility testing for AD.

• 出版日期2009-3