Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults—A Systematic Review
(1) Background: We proposed to review worldwide estimates of cognitive impairment prevalence and incidence in adults older than 50 years of age living in the community. (2) Methods: Systematic searches were performed in January 2019 using MEDLINE/PubMed. Articles were selected if they referred to co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Geriatrics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2308-3417/5/4/84 |
| _version_ | 1797549737696559104 |
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| author | Ricardo Pais Luís Ruano Ofélia P. Carvalho Henrique Barros |
| author_facet | Ricardo Pais Luís Ruano Ofélia P. Carvalho Henrique Barros |
| author_sort | Ricardo Pais |
| collection | DOAJ |
| description | (1) Background: We proposed to review worldwide estimates of cognitive impairment prevalence and incidence in adults older than 50 years of age living in the community. (2) Methods: Systematic searches were performed in January 2019 using MEDLINE/PubMed. Articles were selected if they referred to cognitive impairment, prevalence, incidence, elders, and population or community-based studies. Analysis, aggregated by different methodologic features, was performed. (3) Results: Prevalence (80 studies) ranged between 5.1% and 41% with a median of 19.0% (25th percentile = 12.0%; 75th percentile = 24.90%). Incidence (11 studies) ranged from 22 to 76.8 per 1000 person-years with a median of 53.97 per 1000 person-years (25th percentile = 39.0; 75th percentile = 68.19). No statistically significant effects were found except for inclusion age. (4) Conclusion: We propose that the homogenization and clarification of the definition of what constitutes cognitive impairment are essential to refine the epidemiological understanding of this entity. The results of this review reinforce the importance of adherence to standardized cut-off scores for cognitive tests to promote study comparability. |
| first_indexed | 2024-03-10T15:18:42Z |
| format | Article |
| id | doaj.art-61f0ecc4494144798617ebcf07bdbc02 |
| institution | Directory Open Access Journal |
| issn | 2308-3417 |
| language | English |
| last_indexed | 2024-03-10T15:18:42Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geriatrics |
| spelling | doaj.art-61f0ecc4494144798617ebcf07bdbc022023-11-20T18:41:09ZengMDPI AGGeriatrics2308-34172020-10-01548410.3390/geriatrics5040084Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults—A Systematic ReviewRicardo Pais0Luís Ruano1Ofélia P. Carvalho2Henrique Barros3EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, PortugalEPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, PortugalEPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, PortugalEPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal(1) Background: We proposed to review worldwide estimates of cognitive impairment prevalence and incidence in adults older than 50 years of age living in the community. (2) Methods: Systematic searches were performed in January 2019 using MEDLINE/PubMed. Articles were selected if they referred to cognitive impairment, prevalence, incidence, elders, and population or community-based studies. Analysis, aggregated by different methodologic features, was performed. (3) Results: Prevalence (80 studies) ranged between 5.1% and 41% with a median of 19.0% (25th percentile = 12.0%; 75th percentile = 24.90%). Incidence (11 studies) ranged from 22 to 76.8 per 1000 person-years with a median of 53.97 per 1000 person-years (25th percentile = 39.0; 75th percentile = 68.19). No statistically significant effects were found except for inclusion age. (4) Conclusion: We propose that the homogenization and clarification of the definition of what constitutes cognitive impairment are essential to refine the epidemiological understanding of this entity. The results of this review reinforce the importance of adherence to standardized cut-off scores for cognitive tests to promote study comparability.https://www.mdpi.com/2308-3417/5/4/84epidemiologycognitive impairmentprevalenceincidence |
| spellingShingle | Ricardo Pais Luís Ruano Ofélia P. Carvalho Henrique Barros Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults—A Systematic Review Geriatrics epidemiology cognitive impairment prevalence incidence |
| title | Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults—A Systematic Review |
| title_full | Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults—A Systematic Review |
| title_fullStr | Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults—A Systematic Review |
| title_full_unstemmed | Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults—A Systematic Review |
| title_short | Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults—A Systematic Review |
| title_sort | global cognitive impairment prevalence and incidence in community dwelling older adults a systematic review |
| topic | epidemiology cognitive impairment prevalence incidence |
| url | https://www.mdpi.com/2308-3417/5/4/84 |
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