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Centre for Policy on Ageing | |
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| Self-efficacy is independently associated with brain volume in older women | | Author(s) | Jennifer C Davis, Lindsay S Nagamatsu, Chun Liang Hsu |
| Journal title | Age and Ageing, vol 41, no 4, July 2012 |
| Pages | pp 495-501 |
| Source | http://ageing.oxfordjournals.org/ http://www.bgs.org.uk/ |
| Keywords | Women ; Self esteem ; Falls ; Cognitive processes ; Mental ageing. |
| Annotation | Ageing is highly associated with brain deterioration and evidence suggests that personality variables are risk factors for reduced brain volume. The present study looked at whether falls-related self-efficacy is independently associated with brain volume. The study method was a cross-sectional analysis of whether falls-related self-efficacy is independently associated with brain volumes (total, grey and white matter). Three multivariate regression models were constructed. Covariates included in the models were age, global cognition, systolic blood pressure, functional comorbidity index and current physical activity level. MRI scans were acquired from 79 community-dwelling older women aged between 65 and 75. Falls-related self-efficacy was assessed by the activities-specific balance confidence (ABC) scale. Results showed that after accounting for covariates, falls-related self-efficacy was independently associated with both total brain volume and total grey matter volume. The final model for total brain volume accounted for 17% of the variance, with the ABC score accounting for 8%. For total grey matter volume, the final model accounted for 24% of the variance, with the ABC score accounting for 10%. Overall evidence suggests that falls-related self-efficacy, a modifiable risk factor for healthy ageing, is positively associated with total brain volume and total grey matter volume. (JL). |
| Accession Number | CPA-120814008 A |
| Classmark | SH: DPA: OLF: DA: D6 |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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