学術雑誌論文 Retinal Vascular Changes and Prospective Risk of Disabling Dementia: the Circulatory Risk in Communities Study (CIRCS)

Jinnouchi, Hiroshige  ,  Kitamura, Akihiko  ,  Yamagishi, Kazumasa  ,  Kiyama, Masahiko  ,  Imano, Hironori  ,  Okada, Takeo  ,  Cui, Renzhe  ,  Umesawa, Mitsumasa  ,  Muraki, Isao  ,  Hayama-Terada, Mina  ,  Kawasaki, Ryo  ,  Sankai, Tomoko  ,  Ohira, Tetsuya  ,  Iso, Hiroyasu

24 ( 7 )  , pp.687 - 695 , 2017-07 , Japan Atherosclerosis Society
ISSN:1340-3478
NII書誌ID(NCID):AA11018976
内容記述
Aim: To investigate the association of retinal vascular changes with a risk of dementia in longitudinal population-based study.
Methods: We performed a nested case-control study of 3,718 persons, aged 40–89 years, enrolled between 1983 and 2004. Retinal vascular changes were observed in 351 cases with disabling dementia (average period before the onset, 11.2 years) and in 702 controls matched for sex, age, and baseline year. Incidence of disabling dementia was defined as individuals who received cares for disabilities including dementia-related symptoms and/or behavioral disturbance. Conditional logistic regression analysis was used to calculate odds ratio (OR) and multivariable adjusted OR (Models 1 and 2) for incidence of dis-abling dementia according to each retinal vascular change. Regarding confounding variables, Model 1 included overweight status, hypertension, hyperglycemia, dyslipidemia, and smoking status, whereas Model 2 also included incidence of stroke prior to disabling dementia for further analysis.
Results: The proportion of cases (controls) with retinal vascular changes was 23.1 (15.7)% for general-ized arteriolar narrowing, 7.7 (7.5)% for focal arteriolar narrowing, 15.7 (11.8)% for arteriovenous nick-ing, 10.5 (9.3)% for increased arteriolar wall reflex, and 11.4 (9.8)% for any other retinopathy. General-ized arteriolar narrowing was associated with an in creased risk of disabling dementia: crude OR, 1.66 (95% confidence interval, 1.19–2.31); Model 1: OR, 1.58 (1.12–2.23); Model 2: OR, 1.48 (1.04–2.10). The number of retinal abnormalities was associated in a dose–response manner with the risk.
Conclusion: Generalized arteriolar narrowing and total number of retinal abnormalities may be use-ful markers for identifying persons at higher risks of disabling dementia.
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