Affiliations: [a] Regenerative Neuroscience Group, Brain & Mind Research Institute, University of Sydney, NSW, Australia | [b] Department of Human and Social Science, University of Almeria, Almeria, Spain | [c] School of Psychiatry, University of New South Wales, Sydney, NSW, Australia | [d] Centre for Healthy Brain Ageing, University of New South Wales, Sydney, NSW, Australia | [e] Dementia Collaborative Research Centre–Assessment and Better Care, University of New South Wales, Sydney, NSW, Australia
Correspondence:
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Correspondence to: Michael Valenzuela, Regenerative Neuroscience Group, Brain and Mind Research Institute, University of Sydney, NSW, Australia, 100 Mallett Street, Camperdown, NSW 2050, Australia; Tel.: +61 2 9114 4135; Fax: +61 2 9351 0551; E-mail: Michael.valenzuela@sydney.edu.au.
Abstract: Background:Cognitive lifestyle may be an important modifiable risk factor for dementia but has not yet been comprehensively studied in healthy elderly. Objective:To examine gender- and lifespan-related differences in cognitive lifestyle in a population-based cohort. Methods:872 individuals from the second wave of the Sydney Memory and Ageing Study (MAS) cohort were invited to complete the Lifetime of Experiences Questionnaire (LEQ), a validated measure of cognitive lifestyle. Of 555 questionnaires returned (64%), 253 were excluded due to prior diagnosis of mild cognitive impairment, leaving n = 302 cognitively-intact elders (mean age 80.1 years, ±SD 4.7, 40.1% men). Results:Total LEQ was significantly higher in men (97.9 ± 20.0) than women (90.0 ± 24.5), resulting mainly from midlife LEQ differences. Men were more likely to have worked in managerial or professional jobs (73.8% versus 39.5% women), and twice as likely to have supervised large groups of workers. In late life, women were significantly more likely to be living alone (68.1% versus 25.4% men), but otherwise significantly more engaged in specific cognitive activities, including reading novels (72.3% versus 52.0% men) and incorporating volunteer work (31.9% versus 19.7% men) and socializing (59.0% versus 37.0% men) into their typical day. Over the adult lifespan, it was more common for men and women to transition between LEQ tertiles than remain the same. Conclusions:Cognitive lifestyle changes over the adult lifespan and exhibits a range of gender-based differences. While older women are more likely to be living alone they generally lead a more active current cognitive lifestyle.
