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Serum cholesterol, body mass index and smoking status do not predict long-term cognitive impairment in elderly stroke patients

Artikel i vetenskaplig tidskrift
Författare M. Pascoe
C. F. Ski
D. R. Thompson
Thomas Lindén
Publicerad i Journal of the Neurological Sciences
Volym 406
Sidor 6
ISSN 0022-510X
Publiceringsår 2019
Publicerad vid Institutionen för neurovetenskap och fysiologi
Sidor 6
Språk en
Länkar dx.doi.org/10.1016/j.jns.2019.11647...
Ämnesord Cholesterol, Stroke, Cognition, Risk factors, amyloid-beta-peptide, density-lipoprotein, dementia, risk, aggregation, midlife, Neurosciences & Neurology
Ämneskategorier Klinisk medicin

Sammanfattning

Objectives: Older stroke survivors are at risk of long-term cognitive impairment, which is associated with a number of modifiable and non-modifiable factors. We aimed to assess the association between the modifiable risk factors, serum cholesterol, low density lipoprotein, high density lipoprotein, serum triglycerides, body mass index (BMI) and smoking status on cognitive function, while controlling for the non-modifiable factors, acute functional impairment, diabetes status and age. Methods: A cross-sectional study from a metropolitan university hospital in Sweden involving older adults (n = 149). Assessments occurred at 20 months post-stroke, using the Mini Mental State Examination and serum blood levels of cholesterol, low density lipoprotein, high density lipoprotein and serum triglycerides. Results: Hierarchical linear regression showed that only acute functional impairment significantly contributed to long-term cognitive impairment in stroke survivors. Only 12% of the sample showed healthy cholesterol levels while the remaining patients showed borderline or high cholesterol. levels. In terms of BMI, only 2% of the sample were underweight, 38% were within healthy range and 26% were overweight/obese. Only eight women and four men were smokers, therefore our sample of smokers was likely too small to detect any differences between smokers and non-smokers in regard to cognitive outcomes. Conclusion: Serum cholesterol, low density lipoprotein, high density lipoprotein, serum triglycerides, BMI or smoking status did not influence cognitive outcomes in older stroke surviving individuals. These findings suggest that modification of these factors may not influence cognitive outcomes in stroke-surviving individuals however should be interpreted as preliminary given limitations in the current study.

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