DEPRESSIVE SYMPTOMS IN LATE LIFE AND CEREBROVASCULAR DISEASE: THE IMPORTANCE OF INTELLIGENCE AND LESION LOCATION
Corresponding Author
Alison D. Murray F.R.C.R.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Correspondence to: Alison D. Murray, Aberdeen Biomedical Imaging Centre, The University of Aberdeen, Lilian Sutton Building, Foresterhill, Aberdeen AB25 2ZD. E-mail: [email protected]Search for more papers by this authorRoger T. Staff Ph.D.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Department of Nuclear Medicine, NHS Grampian, Aberdeen, Scotland, United Kingdom
Search for more papers by this authorChristopher J. McNeil Ph.D.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Search for more papers by this authorSima Salarirad Ph.D.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Search for more papers by this authorLouise H. Phillips Ph.D.
School of Psychology, University of Aberdeen, Aberdeen, Scotland, UK
Search for more papers by this authorIan J. Deary Ph.D.
Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, Scotland, UK
Search for more papers by this authorLawrence J. Whalley M.D.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Search for more papers by this authorCorresponding Author
Alison D. Murray F.R.C.R.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Correspondence to: Alison D. Murray, Aberdeen Biomedical Imaging Centre, The University of Aberdeen, Lilian Sutton Building, Foresterhill, Aberdeen AB25 2ZD. E-mail: [email protected]Search for more papers by this authorRoger T. Staff Ph.D.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Department of Nuclear Medicine, NHS Grampian, Aberdeen, Scotland, United Kingdom
Search for more papers by this authorChristopher J. McNeil Ph.D.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Search for more papers by this authorSima Salarirad Ph.D.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Search for more papers by this authorLouise H. Phillips Ph.D.
School of Psychology, University of Aberdeen, Aberdeen, Scotland, UK
Search for more papers by this authorIan J. Deary Ph.D.
Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, Scotland, UK
Search for more papers by this authorLawrence J. Whalley M.D.
Aberdeen Biomedical Imaging Centre, University of Aberdeen, Aberdeen, Scotland,, UK
Search for more papers by this authorAbstract
Background
The influence of white matter lesions on depressive symptoms in healthy ageing populations remains unclear. In this study, we examined the relationship between depressive symptoms and magnetic resonance imaging (MRI) detected cerebrovascular disease in a normal population living independently in the community, and measured the influence of location of brain abnormalities, fluid intelligence, living alone, and sex.
Methods
Prospective cohort: 497 community dwelling individuals all born in 1936, who took part in the Scottish Mental Survey of 1947, were followed up in 2000 and at biannual intervals in a longitudinal study of health and cognitive aging. Two hundred forty-four volunteered for brain MRI in 2004–2006. Suitable data were available in 219/244, of whom 115 were men. Brain hyperintensities in lobar white matter, basal ganglia , periventricular, and infratentorial regions were measured using Scheltens’ scale. Depressed mood was assessed using the Hospital Anxiety and Depression Scale (HADS) on three biannual intervals. Relationships between Scheltens’ scores, HADS-D scores, fluid intelligence, living alone, and sex were assessed using general linear modeling.
Results
The main predictor of depressive symptom scores was poorer fluid intelligence (partial η2 =0.023–0.028, P < .05). Ischemic change in the brainstem (partial η2 = 0.026, P ≤.05) and basal ganglia (partial η2 =0.018, P ≤ .05) also predicted HADS-D scores. There was no relationship with sex or living alone.
Conclusions
Hyperintensities in the brainstem and basal ganglia are associated with depressive symptoms. Higher fluid intelligence is associated with lower depressive symptoms in this normal, ageing population.
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