Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

BACKGROUND: There may be important public health implications of increasing our knowledge of factors associated with age of dementia onset. The pre-morbid personality domain of Neuroticism constituted an interesting and theoretically plausible, yet uninvestigated, candidate for such an association. We aimed to examine whether midlife Neuroticism was associated with earlier age of onset of Alzheimer's disease (AD). METHOD: This was a case-comparison study of 213 patients with probable AD. Detailed clinical information was collected for all patients including age of onset of dementia symptoms. One or two knowledgeable informants rated each patient's midlife personality retrospectively using the Neuroticism, Extraversion, Openness Five-Factor Inventory (NEO-FFI) questionnaire. The relationship between midlife Neuroticism and age of dementia onset was evaluated using both correlational analysis and backward linear regression analysis. RESULTS: Midlife Neuroticism predicted younger age of dementia onset in females but not in males. The association found in females was independent of pre-morbid history of affective disorder. CONCLUSIONS: This finding and its potential mechanism warrant further investigation.

Original publication

DOI

10.1017/S003329170800408X

Type

Journal article

Journal

Psychol Med

Publication Date

04/2009

Volume

39

Pages

665 - 673

Keywords

Age of Onset, Aged, Aged, 80 and over, Alzheimer Disease, Case-Control Studies, Female, Humans, Male, Middle Aged, Neurotic Disorders, Personality Assessment, Risk Factors, Sex Factors, Statistics as Topic