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- Karlsson, Peter, 1970-, et al.
(author)
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Birth Cohort Differences in Fluid Cognition in Old Age : Comparisons of Trends in Levels and Change Trajectories Over 30 Years in Three Population-Based Samples
- 2015
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In: Psychology and Aging. - Washington, DC : American Psychological Association (APA). - 0882-7974 .- 1939-1498. ; 30:1, s. 83-94
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Journal article (peer-reviewed)abstract
- Later born cohorts of older adults tend to outperform earlier born on fluid cognition (i.e. Flynn effect) when measured at the same chronological ages. We investigated cohort differences in level of performance and rate of change across three population-based samples born in 1901, 1906, and 1930, drawn from the Gerontological and Geriatric Population Studies in Gothenburg, Sweden (H70), and measured on tests of logical reasoning and spatial ability at ages 70, 75 and 79 years. Estimates from multiple-group latent growth curve models (LGCM) revealed, in line with previous studies, substantial differences in level of performance where later born cohorts outperformed earlier born cohorts. Somewhat surprisingly later born cohorts showed, on average, a steeper decline than the earlier born cohort. Gender and education only partially accounted for observed cohort trends. Men outperformed women in the 1906 and 1930 cohorts but no difference was found in the 1901 cohort. More years of education was associated with improved performance in all three cohorts. Our findings confirm the presence of birth cohort effects also in old age but indicate a faster rate of decline in later born samples. Potential explanations for these findings are discussed. © 2015 American Psychological Association.
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| 2. |
- Karlsson, Peter, 1970-, et al.
(author)
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Cohort Differences in the Association of Cardiovascular Risk and Cognitive Aging
- 2018
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In: GeroPsych. - Goettingen : Hogrefe & Huber Publishers. - 1662-9647 .- 1662-971X. ; 31:4, s. 195-203
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Journal article (peer-reviewed)abstract
- Aim: To investigate birth cohort differences in associations between cardiovascular risk and fluid cognition between the age of 70 and 79. Method: Data were drawn from representative population-based cohort samples (H70), born 1901–1902, 1906–1907, and 1930, measured at ages 70, 75, and 79 on fluid cognitive measures (spatial ability and logical reasoning). The Framingham Risk Score (FRS), derived from office-based nonlaboratory predictors (age, sex, systolic blood pressure, BMI, smoking, diabetes status), was used to measure cardiovascular risk. Multiple-group latent growth curve models were fitted to the data. Findings: Estimates revealed small associations between the FRS and fluid cognition. These associations were slightly reduced in the 1930 cohort. Conclusion: Findings suggest diminishing adverse effects of cardiovascular risk on cognitive aging in cohorts born later. © 2018 Hogrefe AG.
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| 3. |
- Svensson, Hilda K, 1979, et al.
(author)
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Self-perceived functional ability and performance-based testing of physical function in older women with or without long-term back pain - results of the H70 study
- 2021
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In: Bmc Geriatrics. - London : Springer Science and Business Media LLC. - 1471-2318. ; 21:1
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Journal article (peer-reviewed)abstract
- BackgroundThe proportion of older adults is increasing rapidly, and the majority are female. In 2050, the number of persons aged 60years and over is estimated to reach 2.1 billion worldwide, constituting one-third of the total population of Europe. Long-term back pain is a disabling and common condition, primarily affecting older women. Although standardized functional evaluations are essential in the screening of older adults, self-rated activities of daily living capture a different aspect of the person's ability in the context of his or her environment and social support system. This study aimed to describe how older women with or without long-term back pain self-rate their activities of daily living (ADL) and instrumental activities of daily living (IADL) in relation to their performance-based testing of physical function, including walking test, leg muscle strength, balance, and endurance.MethodThis study is part of the Gothenburg H70 Birth Cohort Studies in Sweden (H70 studies) and uses data from the 1944 birth cohort examined in 2015-16 at age 70. In the present study, only female participants were included in the analysis, and all cases of dementia (n=17) and cases of acute and sub-acute back pain excluded (n=181), leaving an effective sample of 446 female participants.ResultsWomen with long-term back pain self-perceived their ADL and IADL as being as good as those without back pain, although they performed poorer in all performance-based tests and perceived themselves as less physically fit.ConclusionThe discrepancy between self-perceived functional ability (ADL/IADL) and performance-based testing of functioning based on clinical tests calls for further investigation to incentivize person-centered care in older women with long-term back pain in municipal or emergency health-care settings.
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| 4. |
- Thorvaldsson, Valgeir, 1976, et al.
(author)
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Better Cognition in New Birth Cohorts of 70 Year Olds, But Greater Decline Thereafter
- 2017
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In: The journals of gerontology. Series B, Psychological sciences and social sciences. - Cary, NC : Oxford University Press. - 1079-5014 .- 1758-5368. ; 72:1, s. 16-24
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Journal article (peer-reviewed)abstract
- ObjectivesTo evaluate birth cohort differences in level of cognition and rate of change in old age.MethodsData were drawn from three population-based Swedish samples including age-homogenous cohorts born 1901/02, 1906/07, and 1930, and measured on the same cognitive tests at ages 70, 75, and 79 as part of the Gerontological and Geriatric Populations Studies in Gothenburg (H70). We fitted growth curve models to the data using a Bayesian framework and derived estimates and inferences from the marginal posterior distributions.ResultsWe found moderate to large birth cohort effects in level of performance on all cognitive outcomes. Later born cohorts, however, showed steeper linear rate of decline on reasoning, spatial ability, and perceptual- and motor-speed, but not on picture recognition memory and verbal ability.DiscussionThese findings provide strong evidence for substantial birth cohort effects in cognition in older ages and emphasize the importance of life long environmental factors in shaping cognitive aging trajectories. Inferences from cognitive testing, and standardization of test scores, in elderly populations must take into account the substantial birth cohort differences. © The Author 2016. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved.
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