Relationship of subjective cognitive impairment and cognitive impairment no dementia to chronic disease and multimorbidity in a nation-wide twin study.
Relationship of subjective cognitive impairment and cognitive impairment no dementia to chronic disease and multimorbidity in a nation-wide twin study.
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DOI:
10.3233/jad-122050
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Fratiglioni L
中科院分区:
文献类型:
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作者:
Caracciolo B;Gatz M;Xu W;Marengoni A;Pedersen NL;Fratiglioni L
To examine the association of common chronic disease and multimorbidity with subjective cognitive impairment (SCI) and cognitive impairment no-dementia (CIND), and to explore the contribution of genetic background and shared familial environment to these associations. Population-based twin study. Nationwide Swedish twins. 11,379 dementia-free individuals aged ≥ 65 from the Swedish Twin Registry. SCI was defined as subjective complaint of cognitive change without objective cognitive impairment, and CIND was ascertained according to the standard definition. Chronic diseases were classified based on international criteria, and multimorbidity was assessed as the co-occurrence of at least two chronic diseases in the same individual. In unmatched, fully-adjusted regression models, musculoskeletal, respiratory, and urological diseases were significantly associated with increased odds ratios (ORs) of both SCI and CIND. Circulatory and gastrointestinal disorders were related to SCI, while endocrine diseases were associated with CIND. The adjusted ORs of multimorbidity were 2.1 [95% Confidence Intervals (95% CI): 1.8–2.3] for SCI and 1.5 for CIND (95% CI: 1.3–1.8). There was a significant dose-dependent relationship between number of chronic diseases and ORs for SCI but not for CIND. In co-twin control analyses, the chronic diseases-SCI association remained significant but the association with CIND was no longer statistically significant. Chronic diseases are associated with both SCI and CIND and the association is stronger when there is multimorbidity. Genetic and shared environmental factors may partially explain the association of CIND but not that of SCI with chronic diseases.