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Low grade albuminuria as a risk factor for subtypes of stroke - the HUNT Study in Norway.

ABSTRACT: BACKGROUND AND PURPOSE:Albuminuria is a marker for endothelial dysfunction and knowledge on its association with stroke and stroke subtypes are limited. METHODS:Corresponding data from 7261 participants of the population-based HUNT2 study (1995-1997) was linked with hospital records, identified all patients registered and diagnosed with a first-time stroke. Each diagnosis was validated by reviewal of the medical record appertaining to the individual. We then applied Cox proportional hazard models to estimate the hazard ratios (HRs) for the association between albuminuria (measured as albumin-to-creatinine-ratio, ACR) and diagnosis of stroke and stroke subtypes. RESULTS:703 (9.7%) participants developed a first ischemic stroke during a median follow-up of 15?years. Higher albuminuria was associated with a higher rate for ischemic stroke and the risk rose steadily with increasing ACR (15% increment per unit increase in ACR concentration in mg/mmol). In the fully adjusted model, the HR for all ischemic strokes was 1.56 (95% CI 1.24-1.95) for those with an ACR ?3?mg/mmol compared to participants with an ACR

SUBMITTER: Horn JW

PROVIDER: S-EPMC7196218 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Low grade albuminuria as a risk factor for subtypes of stroke - the HUNT Study in Norway.

Horn Jens W JW Romundstad Solfrid S Ellekjær Hanne H Janszky Imre I Horn Julie J

BMC neurology 20200502 1

<h4>Background and purpose</h4>Albuminuria is a marker for endothelial dysfunction and knowledge on its association with stroke and stroke subtypes are limited.<h4>Methods</h4>Corresponding data from 7261 participants of the population-based HUNT2 study (1995-1997) was linked with hospital records, identified all patients registered and diagnosed with a first-time stroke. Each diagnosis was validated by reviewal of the medical record appertaining to the individual. We then applied Cox proportion ...[more]

PMID: 32359353

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Project description:Background and purposeTo identify the qualitative and quantitative contributions of conventional risk factors for occurrence of ischemic stroke and its key pathophysiologic subtypes among West Africans.MethodsThe SIREN (Stroke Investigative Research and Educational Network) is a multicenter, case-control study involving 15 sites in Ghana and Nigeria. Cases include adults aged ≥18 years with ischemic stroke who were etiologically subtyped using the A-S-C-O-D classification into atherosclerosis, small-vessel occlusion, cardiac pathology, other causes, and dissection. Controls were age- and gender-matched stroke-free adults. Detailed evaluations for vascular, lifestyle, and psychosocial factors were performed. We used conditional logistic regression to estimate adjusted odds ratios with 95% CI.ResultsThere were 2431 ischemic stroke case and stroke-free control pairs with respective mean ages of 62.2±14.0 versus 60.9±13.7 years. There were 1024 (42.1%) small vessel occlusions, 427 (17.6%) large-artery atherosclerosis, 258 (10.6%) cardio-embolic, 3 (0.1%) carotid dissections, and 719 (29.6%) undetermined/other causes. The adjusted odds ratio (95% CI) for the 8 dominant risk factors for ischemic stroke were hypertension, 10.34 (6.91-15.45); dyslipidemia, 5.16 (3.78-7.03); diabetes, 3.44 (2.60-4.56); low green vegetable consumption, 1.89 (1.45-2.46); red meat consumption, 1.89 (1.45-2.46); cardiac disease, 1.88 (1.22-2.90); monthly income $100 or more, 1.72 (1.24-2.39); and psychosocial stress, 1.62 (1.18-2.21). Hypertension, dyslipidemia, diabetes were confluent factors shared by small-vessel, large-vessel and cardio-embolic subtypes. Stroke cases and stroke-free controls had a mean of 5.3±1.5 versus 3.2±1.0 adverse cardio-metabolic risk factors respectively (P<0.0001).ConclusionsTraditional vascular risk factors demonstrate important differential effect sizes with pathophysiologic, clinical and preventative implications on the occurrence of ischemic stroke among indigenous West Africans.

Dataset Information

Low grade albuminuria as a risk factor for subtypes of stroke - the HUNT Study in Norway.

Publications

Low grade albuminuria as a risk factor for subtypes of stroke - the HUNT Study in Norway.

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