Abstract 235: Predictors of functional decline over time in an urban population: The Northern Manhattan Study

Author(s):  
Mandip Dhamoon ◽  
Yeseon P Moon ◽  
Myunghee C Paik ◽  
Palma Gervasi-Franklin ◽  
Ralph L Sacco ◽  
...  

Background: There is limited data on predictors of long-term functional status in population samples, and even less about the effect of vascular risk factors on function. We hypothesized that functional status would decline over time, and that vascular risk factors would affect function and mediate functional decline. Methods: The Northern Manhattan Study contains a prospective, population-based study of 3298 stroke-free individuals > 40 years of age, followed for a median of 11 years for vascular events. The Barthel index (BI) was assessed annually and analyzed as a continuous variable on a 100-point scale. Generalized estimating equations models were adjusted for demographic, medical, and social risk factors assessed at baseline. Models were censored and uncensored for stroke and myocardial infarction (MI) occurring during follow-up. Secondarily, motor and non-motor domains of the BI were analyzed separately, and models were stratified by age. Results: Mean age (standard deviation) was 69.2 (10) years, 37% were male, 52% Hispanic, 22% had diabetes, and 74% hypertension. Among 3298 participants, there were 33556 BI assessments. There was an annual decline of 1.02 BI points (p<0.0001). Predictors of change in BI over time included: age (−0.08 BI points per year; p<0.0001), Hispanic ethnicity (−0.22 per year, compared to white; p=0.016), female sex (−0.30 per year, compared to male; p<0.0001), diabetes (−0.38 per year, compared to non-diabetics; p=0.0002), and depression (−0.26 per year, compared to no depression; p=0.046). Results did not change when stroke and MI were censored. Magnitude and significance of predictors of BI were similar for motor and non-motor domains. The following had a different effect on change in BI in those above the median age (68 years), compared to those less than or equal to the median: age (−0.15 per year vs. −0.03; p for difference <0.0001), female compared to male sex (−0.43 per year vs. −0.15; p=0.049), and depression compared to no depression (−0.64 per year vs. −0.008, p=0.023). Conclusion: In this large, population-based, multi-ethnic study with long-term follow-up, we found a 1% mean decline in function per year that did not change when the effect of vascular events was excluded by censoring. Vascular risk factors predicted functional decline even in the absence of clinical events. The impact of gender sex and depression was stronger amongst the elderly.

Stroke ◽  
2012 ◽  
Vol 43 (suppl_1) ◽  
Author(s):  
Mandip Dhamoon ◽  
Yeseon P Moon ◽  
Myunghee C Paik ◽  
Consuelo McLaughlin-Mora ◽  
Ralph L Sacco ◽  
...  

Background: Previous research in our population showed a steeper long-term decline in functional status after first ischemic stroke among those with Medicaid or no insurance compared to those with Medicare or private insurance. With only post-stroke data, it was unknown whether these findings were caused by the stroke. We sought to compare the long-term trajectory of functional status before and after ischemic stroke. Methods: The Northern Manhattan Study contains a prospective, population-based study of stroke-free individuals >40 years of age, followed for a median of 10 years. The Barthel index (BI) was assessed annually. Generalized estimating equations were used to assess functional decline over time before and after stroke. The 6 months after stroke were ignored, since the course of recovery during this period is well documented, and our interest was the long-term course of functional status. Follow-up was censored at the time of recurrent stroke. Sociodemographic and medical risk factors were included and results were stratified by insurance status. Linearity of the curves was evaluated by plotting residuals against time and with a lowess curve. Results: Among 3298 participants, 261 had an ischemic stroke during follow-up, of which 51 died within 6 months of stroke. Among the remaining 210 participants, mean age at stroke (standard deviation) was 77+9 years, 38% were male, 52% were Hispanic, 37% had diabetes, and 31% had coronary artery disease. There was no difference in functional decline over time before and after stroke (p= 0.51), with a decline of 0.96 BI points per year before stroke (p<.0001) and 1.24 after stroke (p=0.001). However, when stratified by insurance status, among those with Medicaid or no insurance, in a fully adjusted model, there was a difference in slope before and after stroke (p=0.04), with a decline of 0.58 BI points per year before stroke (p=0.02) and 1.94 after stroke (p=0.001). Other predictors of worse functional status were increasing age, female sex, diabetes, and being married. Conclusion: In this large, prospective, population-based study with long-term follow-up, there was a significantly steeper decline in functional status after ischemic stroke compared to before stroke among those with Medicaid or no insurance, after adjusting for confounders. The cause of this differential decline is not known but may be related to poor control of risk factors, silent strokes, or an effect of socioeconomic status.


Author(s):  
Sheila B. Buijs ◽  
Sanne K. Stuart ◽  
Jan Jelrik Oosterheert ◽  
Steffi Karhof ◽  
Andy I. M. Hoepelman ◽  
...  

AbstractWe evaluated the long-term serological follow-up of patients with vascular risk factors for chronic Q fever that were previously Coxiellaburnetii seropositive. C. burnetii phase I IgG titers were reevaluated in patients that gave informed consent or retrospectively collected in patients already deceased or lost to follow-up. Of 107 patients, 25 (23.4%) became seronegative, 77 (72.0%) retained a profile of past resolved Q fever infection, and five (4.7%) developed chronic Q fever. We urge clinicians to stay vigilant for chronic Q fever beyond two years after primary infection and perform serological testing based on clinical presentation.


Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Jose Gutierrez ◽  
Chuanhui Dong ◽  
Sandino Cespedes ◽  
Tatjana Rundek ◽  
Ralph Sacco ◽  
...  

Introduction: Small perivascular spaces (SPVS) are gaining momentum as imaging biomarkers of cerebrovascular health. Hypothesis: SPVS confer vascular risks and the coexistence of SPVS with lacunar infarcts (LI) heightens these risks. Methods: Stroke-free participants in the population-based Northern Manhattan Study were followed for incident stroke (ischemic and hemorrhagic), MI, all death, vascular death, and any vascular event. Lesions with diameter of 3 mm or less and absence of FLAIR rim were classified as SPVS on a semi-quantitative scale (range 0 to 28). We defined “high SPVS burden” as the upper quintile and compared the rate of vascular events in this group to individuals in the lower 4 quintiles combined. LI were defined as lesions greater than 3 mm with associated FLAIR rim, round shape, and typical location. Cox models were used to calculate risks of outcomes after adjusting for confounders. Results: This analysis includes 1208 NOMAS participants (40% male, 65% Hispanic; mean age 71 ± 9 years at time of MRI) followed a mean of 6 ± 2 years. SPVS were present in 91% of the sample (median SPVS scale score 5). Compared to participants with a lesser burden of SPVS, participants with a high SPVS burden had a higher incidence rate per 1000 person-years of death (48 vs 34), vascular death (20 vs 11), ischemic stroke (12 vs 7) and any vascular event (37 vs 24). After adjusting for demographics and vascular risk factors, participants with a high burden of SPVS had a higher risk of death (HR 1.35, 1.00-1.78), vascular death (HR 1.55, 0.96-2.51), any stroke (HR 1.53, 0.91-2.57), MI (HR 1.29, 0.69-2.41), and any vascular event (HR 1.50, 1.07-2.11). The presence of lacunar infarcts was an effect modifier such that those with LI and a high SPVS burden had a greater risk of vascular death (B=0.63, P=0.03), any stroke (B=0.72, P=0.03) and any vascular event (B=0.54, P=0.02) compared to those without LI. Conclusions: In this multi-ethnic, population-based study, participants with a high burden of SPVS had increased incidence rates of vascular events. Furthermore, the joint presence of SPVS and LI heighten the risk of vascular death, any stroke and any vascular event. The presence of SPVS may help select subjects for randomized trials to assess intervention strategies.


2011 ◽  
Vol 31 (6) ◽  
pp. 460-466 ◽  
Author(s):  
Elina Rönnemaa ◽  
Björn Zethelius ◽  
Lars Lannfelt ◽  
Lena Kilander

2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
F. Bermejo-Pareja ◽  
R. Trincado ◽  
C. Rodriguez ◽  
M. Fernandez ◽  
S. Vega ◽  
...  

Background:Self-perceived health is a well-recognised predictor of later health outcomes and mortality, but its relationship to incident dementia has been scarcely explored.Objective:To analyze self- perceived health as a risk factor for dementia and Alzheimer disease (AD) in a population- based survey of the elderly (NEDICES) Study.Methods:Participants were evaluated at baseline (1994-1995) with a standardized questionnaire that included subjective and objective (chronic disorders) health status and screening questions for depression and neurologic disorders. At follow-up (a median of 3.2 years later in 1997-1998) an analogous protocol and neurological assessment were performed.Results:Of 5,278 participants evaluated at baseline there were 306 prevalent dementia cases, and 161 incident dementia cases were identified among 3,891 individuals assessed at follow-up (D: 115).Cox hazard ratio analyses showed that age, stroke and illiteracy were independent risk factors for dementia and AD. Aggregation of vascular risk factors was related to a higher risk of both dementia and AD. Good (and very good) versus less than good (fair, bad and very bad) self-perceived health was an independent risk factor for dementia (CI 95% 1.13- 2.16; p= .006) and AD (CI 95% 1.02- 2.18; p= .038) after adjusting by age, sex education and vascular risk factors.Discussion:Self-perceived health increased the risk for incident dementia and AD in the NEDICES cohort as it was previously described in the United Kindom MRC- CFA Study of dementia incidence. Global health measurements (self-perceived health, quality of life) needs farther studies as risk for dementia and AD.


2021 ◽  
pp. jnnp-2021-326043
Author(s):  
Alis Heshmatollah ◽  
Lisanne J. Dommershuijsen ◽  
Lana Fani ◽  
Peter J. Koudstaal ◽  
M. Arfan Ikram ◽  
...  

ObjectiveAlthough knowledge on poststroke cognitive and functional decline is increasing, little is known about the possible decline of these functions before stroke. We determined the long-term trajectories of cognition and daily functioning before and after stroke.MethodsBetween 1990 and 2016, we repeatedly assessed cognition (Mini-Mental State Examination (MMSE), 15-Word Learning, Letter–Digit Substitution, Stroop, Verbal Fluency, Purdue Pegboard) and basic and instrumental activities of daily living (BADL and IADL) in 14 712 participants within the population-based Rotterdam Study. Incident stroke was assessed through continuous monitoring of medical records until 2018. We matched participants with incident stroke to stroke-free participants (1:3) based on sex and birth year. Trajectories of cognition and daily functioning of patients who had a stroke 10 years before and 10 years after stroke and the corresponding trajectories of stroke-free individuals were constructed using adjusted linear mixed effects models.ResultsDuring a mean follow-up of 12.5±6.8 years, a total of 1662 participants suffered a first-ever stroke. Patients who had a stroke deviated from stroke-free controls up to 10 years before stroke diagnosis in cognition and daily functioning. Significant deviations before stroke were seen in scores of MMSE (6.4 years), Stroop (5.7 years), Purdue Pegboard (3.8 years) and BADL and IADL (2.2 and 3.0 years, respectively).ConclusionPatients who had a stroke have steeper declines in cognition and daily functioning up to 10 years before their first-ever stroke compared with stroke-free individuals. Our findings suggest that accumulating intracerebral pathology already has a clinical impact before stroke.


Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Carlos Cantu-Brito ◽  
Erwin Chiquete ◽  
Jose L Ruiz-Sandoval ◽  
Fernando Flores-Silva

Background and Purpose: The objective of this study were to describe the proportion of patients eligible for the COMPASS trial among stable outpatients with either established atherothrombotic disease or major vascular risk factors, and to analyze 6-month incident stroke risk according vascular risk factors at baseline. Methods: We prospectively recruited 5,101 stable outpatients in 172 sites, within the Mexican INDAGA cohort study. Inclusion criteria were age >18 years and established atherothrombotic disease [history of either acute coronary syndromes (ACS), acute ischemic stroke (AIS)/transient ischemic attack (TIA) or peripheral artery disease (PAD)] or major vascular risk factors (age <55 years plus ≥2 major vascular risk factors, or age ≥55 years plus ≥1 vascular risk factors). Among these patients, we applied the selection criteria of the COMPASS trial for analysis, dividing the population in no COMPASS criteria met and COMPASS criteria met, and this last group subdivided among patients with previous AIS/TIA and without this antecedent, in order to stratify the risk for stroke during 6-month follow-up (incident AIS/TIA). Results: Among 5,101 stable outpatients with either established atherothrombotic disease (n=2,827) or major vascular risk factors (n=2,274), a total of 1,927 (37.8%) met COMPASS trial criteria: 1,054 (54.7%) with established cerebrovascular disease (past history of AIS/TIA) and 873 (45.3%) without. During 6-month follow-up, there were 89 incident AIS/TIA (39 AIS and 54 TIA): 1.7% among the whole population and 2.2% among the COMPASS subgroup. AIS/TIA occurred in a similar frequency among the COMPASS subgroup with established cerebrovascular disease (1.6%) and COMPASS without cerebrovascular disease (0.9%) (P=0.18). After a Cox-proportional hazards model, independent predictors of incident AIS/TIA were age ≥65 years (HR: 1.99, 95% CI: 1.29-3.07) and established cerebrovascular disease at baseline (HR: 1.61, 95% CI: 1.02-2.53). Conclusions: The majority of stable outpatients at vascular risk met COMPASS selection criteria and could be good candidates for low-dose rivaroxaban in addition to aspirin. Short-term predictors of AIS/TIA were old age and history of cerebrovascular disease


2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Arkadiusz Siennicki-Lantz ◽  
Sölve Elmståhl

To assess an impact of vascular risk factors on ambulatory blood pressure measurement (ABPM) in the elderly, we followed up a population-based cohort of men from 68 until 82 years, when 104 survivors underwent ABPM.Results. At age 68, hypertension and high clinic blood pressure (CBP) did not predict ABPM level. Smoking and low ankle-brachial index (ABI) predicted higher ABPM variability and pulse pressure (PP), but not absolute ABPM values. At age 82, hypertension, high or increasing CBP, strongly positively correlated with all variables of ABPM. Carotid stenosis, low or declining ABI during followup, correlated with higher nocturnal ABPM and PP.Concluding. Hypertension and vascular risk factors in a cohort of 68-year-old men do not result in higher ABPM at age 82, possibly due to inflection point in their pressure development. Higher ABPM reflects instead an increasing CBP and aggravating atherosclerosis during the preceding decade in that part of the cohort with previously favorable risk factor status.


Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Kaori Miwa ◽  
Shuhei Okazaki ◽  
Yoshiki Yagita ◽  
Manabu Sakaguchi ◽  
Hideki Mochizuki ◽  
...  

Objectives: Increased serum total homocysteine (tHcy) levels have been associated with not only vascular injury but also dementia. However, given an association between Hcy and vascular injury, such as cerebral small-vessel disease (SVD) or renal impairment, to what extent Hcy would impact future dementia beyond these confouders is unknown. We assessed the predictive value of tHcy levels with the risk of dementia in patients with vascular risk factors, when controlling for the MRI-findings and renal imapirment. Methods: Within a Japanese cohort of partients with vascular risk factors in an observational study from 2001, we evaluated the association between tHcy levels at baseline, defined as a continuous variable (per 1 μmol/L) and as a categorical variable (the tertile of tHcy), the prevalence of MRI-findings, and incident all-cause dementia during follow-up. Baseline brain MRI was used to determine SVD (lacuna, white matter hyperintensities and cerebral microbleeds [CMBs]) and atrophy (medial-temporal lobe atrophy). Cox proportional hazards analyses were performed for predictors of dementia adjusting for age, sex, APOEε4 allele, educational level, cerebrovascular events, estimated glomerular filtration rate (eGFR), vascular risk factors, and MRI-findings. Results: Of the 643 subjects (mean:67.2±8.4years, male:59%, 12.9±2.6years of schooling), in multivariable analyses adjusted for age, sex, hypertension, cerebrovascular events, eGFR, and intima-media thickness, the highest tHcy tertile (vs lowest) were associated with lacuna, CMBs and strictly deep CMBs, respectively. During the mean 7.3-year follow-up (range:3-13), 47 incident dementia patients (Alzheimer’s disease:24; vascular dementia:18; mixed-type:3; other:2) were diagnosed. In multivariable analyses adjusted for age, sex, cerebrovascular events, eGFR, and MRI-findings, tHcy level or the highest tertile of tHcy for all-cause dementia remained significant, respectively (relative risk [RR]1.09: p=0.02, RR;2.59: p=0.021). Conclusions: Our results provide additional evidence of Hcy that leads to increased susceptibility to the risk of dementia, suggesting that this association may be mediated by independent mechanisms.


2020 ◽  
pp. 174749302093276 ◽  
Author(s):  
SF Ameriso ◽  
MM Gomez-Schneider ◽  
MA Hawkes ◽  
VA Pujol-Lereis ◽  
DE Dossi ◽  
...  

Background Stroke burden is highest and is still rising in low- and middle-income countries. Epidemiologic stroke data are lacking in many of these countries. Stroke prevalence in Argentina has been unexplored for almost three decades. Aim This population-based study aims to determine prevalence of stroke in a representative sample of the Argentinean population. Methods We performed a door-to-door survey of randomly selected households in a city of 18,650 inhabitants. A structured questionnaire screening for potential stroke cases was used. All subjects screened positive were then evaluated by stroke neurologists for final adjudication. Data about stroke subtypes, neurological status, vascular risk factors, medications, and diagnostic tests were also collected. Results Among 2156 surveys, 294 were screened positive for a possible stroke. After neurological evaluation, there were 41 confirmed cases. The adjusted stroke prevalence was 1,974/100,000 inhabitants older than 40 years, and it was higher in men than in women (26.3‰ vs 13.2‰, p<0.01). Prevalence of ischemic stroke, intracranial hemorrhage, and transient ischemic attack were 15.8‰, 2.93‰, and 2.93‰, respectively. The most prevalent vascular risk factors in stroke survivors were hypertension, obstructive sleep apnea, and dyslipidemia. Conclusion Approximately 2 in every 100 subjects older than 40 years in this population are stroke survivors. Stroke prevalence in Argentina has remained stable over the last 30 years; it is higher than in most Latin American countries and similar to western populations.


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