Publications by authors named "Mark J Sedler"

Article Synopsis
  • Street violence negatively impacts cardiovascular health (CVH), but its effects had not been thoroughly studied prior to this research.
  • The study involved 648 participants over the age of 40 in a rural Ecuadorian village and examined the relationship between fear of crime and CVH using American Heart Association guidelines.
  • Results indicated that higher fear of crime significantly correlated with worsening CVH status, suggesting a need for interventions to improve health outcomes in communities affected by violence.
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Background: Escalating street violence and criminal homicides have an adverse impact on psychological well-being. However, these consequences have been difficult to evaluate. Using a recently validated scale, we aimed to assess the impact of fear of crime on the psychological status of middle-aged and older adults living in a rural setting afflicted by endemic violence.

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Unlabelled: Reports addressing the effects of oily fish intake on bone health are inconsistent. This study shows that consumption of ≥ 5.2 oily fish servings/week (728 g) is associated with lower prevalence of osteopenia/osteoporosis in elderly women of Amerindian ancestry.

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Background: Information on factors that increase mortality in remote settings is limited. This study aims to estimate the independent and joint role of several factors on mortality risk among older adults living in rural Ecuador.

Methods: Participants were selected from community-dwelling older adults who were included in previous studies targeting mortality risk factors in the study population.

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Article Synopsis
  • The study investigates the relationship between sleep quality and mortality in adults aged 40 and older in rural Ecuador.
  • It involved 1,494 participants followed for over six years, assessing sleep with the Pittsburgh Sleep Quality Index and tracking deaths.
  • Results indicated that individuals with poor sleep quality were 1.38 times more likely to die than those with good sleep quality, highlighting a significant health risk associated with inadequate sleep.
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Objective: There is limited information on mortality risk in individuals with cognitive impairment living in rural Latin America. In this study, we assess the association between cognitive impairment and all-cause mortality in adults of Amerindian ancestry living in rural Ecuador.

Patients And Methods: Middle-aged and older adults enrolled in the population-based Three Villages Study cohort were followed prospectively in order to estimate mortality risk according to their baseline cognitive performance as determined by the Montreal Cognitive Assessment (MoCA).

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High social risk has been associated with mortality, but information on this relationship in remote rural communities is limited. Using the social determinants of health (SDH) specified in the Gijon's social-familial evaluation scale (SFES), we aimed to assess mortality risk according to levels of social risk in community-dwelling older adults living in rural Ecuador. Following a longitudinal population-based design, this study prospectively followed 457 individuals for an average of 8.

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Purpose: To assess the relationship between dietary oily fish intake and all-cause mortality in a population of frequent fish consumers of Amerindian ancestry living in rural Ecuador.

Methods: Individuals aged ≥ 40 years enrolled in the prospective population-based Atahualpa Project cohort received annual questionnaires to estimate their dietary oily fish intake. Only fish served broiled or cooked in the soup were included for analysis.

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Background: Information of the effect of social risk on the cardiovascular health (CVH) status among individuals living in rural settings is limited. We aim to assess this effect in participants of the Three Villages Study cohort.

Methods: Following a longitudinal prospective design, older adults living in rural Ecuador received baseline social risk determinations by means of social determinants of health components included in the Gijon's Social-Familial Evaluation Scale (SFES) together with clinical interviews and procedures to determine CVH status included in the Life's Simple 7 construct.

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Objective: Abnormal ankle-brachial index (ABI) determinations may be associated with an increased risk of incident strokes. However, the impact of previous strokes in this relationship is unknown. We estimated the role of previous strokes on the association between abnormal ABI determinations and incident stroke risk in community-dwelling older adults.

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Introduction: Oily fish intake may reduce the progression of white matter hyperintensities (WMH) of presumed vascular origin due to their high content of omega-3 polyunsaturated fatty acids and other nutrients. However, information on this relationship is limited. We aimed to assess the association between oily fish intake and WMH progression in older adults living in rural coastal Ecuador.

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Objective: Arterial stiffness - as measured by the aortic pulse wave velocity (aPWV) - has been associated with biomarkers of cerebral small vessel disease (cSVD), in particular with white matter hyperintensities (WMH) of presumed vascular origin. Most studies have been conducted in White and Asian populations, and information on this relationship in other ethnic groups is limited. We designed a longitudinal prospective study to assess the impact of aPWV on WMH progression in individuals of Amerindian ancestry.

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Background: Several studies have attempted to clarify the role of social determinants of health (SDH) on nutritional status of older adults, but results are inconsistent due to differences in SDH assessments at different levels of population development. In this study, we assessed this association in community-dwelling older adults living in rural Ecuador. Methods: SDH were measured by the Gijon's Social-Familial Evaluation Scale (SFES) and nutritional status by the Mini Nutritional Assessment (MNA).

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Background: COVID-19 patients may develop atherosclerosis-related complications. Whether a proportion of these patients already had asymptomatic cervicocephalic atherosclerosis before SARS-CoV-2 infection is not known. This study assessed whether pre-existing cervicocephalic atherosclerosis increased the susceptibility to SARS-CoV-2 infection or resulted in more severe or fatal COVID-19.

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Objectives: There is limited information on factors associated with poor cognitive performance in rural settings of Low- and Middle-Income Countries. Using the Three Villages Study Cohort, we assessed whether social determinants of health (SDH) play a role in cognitive performance among older adults living in rural Ecuador.

Methods: Atahualpa, El Tambo and Prosperidad residents aged ≥60 years received measurement of SDH by means of the Gijon Scale together with a Montreal Cognitive Assessment (MoCA).

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Life's Simple 7 is an initiative of the American Heart Association developed for stratifying risk factors associated with adverse vascular outcomes and premature mortality. While this scale has been widely used, there is limited information on its applicability to individuals living in remote communities where risk factors and lifestyles differ from those found in urban settings. This longitudinal prospective study aimed to assess, according to the Life's Simple 7 scale, all-cause mortality in community-dwelling middle-age and older adults of Amerindian ancestry living in rural Ecuador.

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Background: Various anthropometric measurements have been inversely associated with atherosclerosis, giving rise to the concept of an "obesity paradox" However, inconsistent study results make it difficult to determine the best anthropometric measurement with which to assess such inverse relationship. Height has been inversely associated with atherosclerosis and it is unlikely to be associated with unexpected biases. In this study, we aimed to assess the association between height and other anthropometric measurements and intracranial atherosclerotic disease (ICAD).

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Background: Information on the body composition of inhabitants of remote communities during the SARS-CoV-2 pandemic is limited. Using a longitudinal population-based study design, we assessed the association between SARS-CoV-2 infection and changes in body composition.

Methods: Community-dwelling older adults living in a rural Ecuadorian village received body composition determinations before and 1 year after the pandemic as well as serological tests for detection of SARS-CoV-2 antibodies.

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Objective: To assess the association between SARS-CoV-2 infection and decreased hand grip strength (HGS).

Design: Longitudinal population-based study.

Setting: Community-dwelling older adults (aged ≥60 years) living in a rural Ecuadorian village struck by the SARS-CoV-2 pandemic.

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Background: Knowledge on the prevalence and correlates of intracranial atherosclerotic disease (ICAD) is limited. We aimed to assess prevalence, clinical and neuroimaging correlates of ICAD in a cohort of older adults of Amerindian ancestry.

Methods: The study included 581 community-dwellers aged ≥60 years (mean age 71 ± 8.

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Arterial hypertension has been associated with severe tooth loss, but differential associations with individual components of blood pressure (BP) have scarcely been investigated. We assessed the independent associations between pulsatile/steady components of BP and severe tooth loss in community-dwelling adults residing in 3 rural Ecuadorian villages. Individuals aged ≥40 years living in Atahualpa, El Tambo, and Prosperidad were identified during door-to-door surveys.

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Background: A systematic evaluation of the relationship between frailty and large artery atherosclerosis (LAA) burden has not been carried out. Here, we aimed to assess the association between these variables in community-dwelling older adults living in Atahualpa (rural Ecuador).

Methods: Participants underwent frailty assessment and determinations of LAA in several vascular beds.

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Objective: Information on the associations among arterial stiffness, carotid intima-media thickness (cIMT) and carotid plaques as biomarkers of atherosclerosis is limited in diverse populations. We aimed to assess whether aortic pulse wave velocity (aPWV) - as a surrogate of arterial stiffness - is associated with increased cIMT and the presence of carotid plaques in a cohort of older adults of Amerindian ancestry.

Methods: Atahualpa residents aged ≥60 years ( = 320) underwent aPWV determinations, and carotid ultrasounds for cIMT and plaque assessment.

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Objective: Cerebral small vessel disease (cSVD) and large artery atherosclerosis (LAA) are related to different pathogenetic mechanisms. However, relationships between single biomarkers of cSVD and LAA affecting isolated vascular beds have been reported. Using the Atahualpa Project cohort, we aimed to assess the association between cSVD score categories and LAA burden in community-dwelling older adults.

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