Olga L Sarmiento
Dados Biográficos
| ID | 78093 |
|---|---|
| NOME | Olga L Sarmiento |
| PRENOMES | Olga L |
| SOBRENOME | Sarmiento |
| ASSINATURA | SARMIENTO O L |
| AFILIAÇÕES | Universidad de los Andes |
| ORCID | 0000-0002-9190-3568 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 75 |
| TOTAL DE CITAÇÕES | 170 |
| TOTAL COMO AUTOR | 75 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2004 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 6 |
Mediation analysis investigating the mechanisms of two school-based smoking prevention interventions in adolescents from Northern Ireland and Bogotá
Background Reviews have highlighted a lack of evidence on how successful intervention strategies for adolescent smoking prevention can be effectively adapted for low-middle income countries (LMICs). The MECHANISMS study compared behavioral mechanisms between two school-based smoking prevention programs for adolescents in Northern Ireland (NI; a high-income setting) and Bogotá, Colombia (middle-income). ASSIST works via peer education and diffusio…
Spatial inequalities in urban infrastructure for physical activity in Greater Santiago, Chile
This study characterized urban infrastructure (UI) supporting physical activity (PA) in Greater Santiago (GS), Chile, and examined its spatial distribution. A conceptual model comprising four key dimensions — active transport, green areas, public transport, and safety — was used to guide selection of relevant indicators (23 total). Statistical and spatial analyses were conducted across 34 municipalities and 1623 neighborhoods using a summary inde…
Trends in adults body mass index related to changes in socioeconomic status of 201 large Latin American cities
BACKGROUND: The prevalence of obesity has increased worldwide. The association between socioeconomic urban development in the nutritional status of the population in large cities from low and middle-income countries is unclear. AIM: Analyze how time trends in adult BMI vary across large cities and examine whether city socioeconomic status (SES) is related to adult BMI trends and whether individual level SES modifies this relationship. METHODS: We…
Associations between 10-second standing balance tests and mild cognitive impairment in older adults in Colombia
Very little is known about the associations between balance and cognition in Latin America. Therefore, the objective of this study was to investigate associations between 10-second standing balance tests and mild cognitive impairment using data from a large nationally representative study of older adults in Colombia. The sample included 23,443 community-dwelling adults aged 71 (8) years [mean (SD)] from the National Survey of Health, Wellbeing an…
Quality of life, mental health and social relationships among older adults participating in the Recreovía physical activity community program
Community-based physical activity programs like Recreovía enhance older adults' social engagement, foster intergenerational relationships, reduce social isolation, and promote healthy aging. Outdoor spaces that support physical activity and socialization are vital for maintaining independence, mental health, and quality of life. These programs also help older adults sustain relationships and contribute meaningfully to society, promoting a more eq…
The Global Matrix of Physical Activity in Children and Adolescents in Latin America
Objective. To synthesize the grades of physical activity (PA) indicators for children and adolescents (5–17 years) in Latin American countries; explore the social determinants of health (SDoH) for PA indicators; and identify strengths, weaknesses, opportunities, and threats to improve PA levels. Method. Participating Latin American countries graded a set of common PA indicators following the harmonized methodology established by the Global Matrix…
Riding the waves of change
What street do you like? Exploring the subjective perception of public spaces in unequal and segregated cities
Are extensions in paid parental leave associated with lower infant and neonatal mortality in Latin American cities? Evidence from 148 cities in Chile, Mexico, and Colombia (2000-2015)
We examined changes in infant and neonatal mortality that occurred after extension in the minimum number of days of paid maternity leave and after the implementation of paid paternity leave in 148 cities using longitudinal city-level data (2000-2015) from Chile, Colombia, and Mexico, compiled and harmonized by the Salud Urbana en America Latina (SALURBAL) study. For Chile we also explored variations in these associations according to the mother's…
Fostering collective action for adolescent well-being
We present findings from the Our Voice in Barú project, examining adolescent engagement in citizen science to address environmental and social factors affecting well-being in a semi-rural Afro-descendant community in Latin America. The project aimed to identify barriers and enablers of well-being, informing adolescent-led actions for sustainable environmental changes relevant to adolescent health. Utilizing the Our Voice citizen science method, w…
Urban Environments, Health, and Environmental Sustainability
Despite the relevance of cities and city policies for health, there has been limited examination of large numbers of cities aimed at characterizing urban health determinants and identifying effective policies. The relatively few comparative studies that exist include few cities in lower and middle income countries. The Salud Urbana en America Latina study (SALURBAL) was launched in 2017 to address this gap. The study has four aims: (1) to investi…
Research Translation to Promote Urban Health in Latin America
In highly urbanized and unequal Latin America, urban health and health equity research are essential to effective policymaking. To ensure the application of relevant and context-specific evidence to efforts to reduce urban health inequities, urban health research in Latin America must incorporate strategic research translation efforts. Beginning in 2017, the Urban Health in Latin America (SALURBAL) project implemented policy-relevant research and…
Urban Care for Unpaid Caregivers
The Care Block of Bogotá, Colombia, is an urban program that offers services for low-income unpaid caregivers. This study aimed to (i) characterize unpaid caregivers' subjective well-being, mental health symptoms, physical activity levels, and use of public spaces linked to the Care Block; (ii) identify caregivers' perceived built and social environment facilitators and barriers to accessing the Care Block facility; and (iii) document the communi…
Spatial segregation patterns and association with built environment features in Colombian cities
Spatial segregation is a pressing issue in Latin American cities due to high urbanization, population density, and inequalities. This study examines segregation patterns in 84 middle to large cities in Colombia and their relationship with the spatial configuration of cities using satellite data. The analysis focuses on evenness and isolation metrics of segregation for ethnicity, education level, and employment status. The findings reveal higher s…
Gender and urban health
Latin American cities have evolved via exclusionary historical processes, resulting in hasty and unplanned urbanization, insufficient infrastructure, and extreme levels of violence. These issues have well-documented health implications. In urban settings, gender may lead to unequal access to opportunities and services, however, its consideration into policies, interventions, and research remains insufficient, potentially exacerbating urban inequi…
Selection homophily and peer influence for adolescents’ smoking and vaping norms and outcomes in high and middle-income settings
The MECHANISMS study investigates how social norms for adolescent smoking and vaping are transmitted through school friendship networks, and is the first study to use behavioral economics methodology to assess smoking-related social norms. Here, we investigate the effects of selection homophily (the tendency to form friendships with similar peers) and peer influence (a social process whereby an individual’s behavior or attitudes are affected by p…
User expectations and perceptions towards new public transport infrastructure
Cable cars are a viable alternative to improve citizens’ accessibility in zones with limitations on urban public transport supply due to the topography. In Latin America, such systems have recently been implemented in zones with high levels of poverty and vulnerability. Although the social implications of their implementation are relevant, individual expectations of these systems and how current changes in travel conditions and quality of life ar…
Emergence of social support networks among breast cancer survivors through a community-based physical activity program in Colombia
Global Matrix 4.0 Physical Activity Report Card Grades for Children and Adolescents
Background : The Global Matrix 4.0 on physical activity (PA) for children and adolescents was developed to achieve a comprehensive understanding of the global variation in children’s and adolescents’ (5–17 y) PA, related measures, and key sources of influence. The objectives of this article were (1) to summarize the findings from the Global Matrix 4.0 Report Cards, (2) to compare indicators across countries, and (3) to explore trends related to t…
Cross-sector co-creation of a community-based physical activity program for breast cancer survivors in Colombia
Benefits of physical activity (PA) in breast cancer survivors (BCS) are well established. However, programs to promote PA among BCS tailored to real-world contexts within low- to middle-income countries are limited. Cross-sector co-creation can be key to effective and scalable programs for BCS in these countries. This study aimed to evaluate the networking process to engage multisector stakeholders in the co-creation of a PA program for Colombian…
City-Level Travel Time and Individual Dietary Consumption in Latin American Cities
There is limited empirical evidence on how travel time affects dietary patterns, and even less in Latin American cities (LACs). Using data from 181 LACs, we investigated whether longer travel times at the city level are associated with lower consumption of vegetables and higher consumption of sugar-sweetened beverages and if this association differs by city size. Travel time was measured as the average city-level travel time during peak hours and…
Our Voice in a rural community
This study underscores the importance of the school's built environment in the well-being of students in rural areas. The Our Voice method provided the opportunity to inform school-based interventions, and promoted ripple effects that expanded productive dialogue to the community level and generated systemic actions involving actors outside of the school community
Aging and self-reported health in 114 Latin American cities
Across cities in Latin America, aging impact on health is significant among middle-aged adults, and among men. In both genders, cities with lower SEI or lower GDP per-capita were associated with poor SRH. More research is needed to better understand gender inequalities and how city socioeconomic environments, represented by different indicators, modify exposures and vulnerabilities associated with aging
Innovative participatory evaluation methodologies to assess and sustain multilevel impacts of two community-based physical activity programs for women in Colombia
The implementation of both participatory methodologies provided a multidimensional understanding of the programs' impacts and multisectoral dialogues that fostered efforts to sustain the community-based PA programs
Are Women’s Empowerment and Income Inequality Associated with Excess Weight in Latin American Cities
While income gradients and gender inequalities in excess weight have been noted elsewhere, data from Latin American cities is lacking. We analyzed gender-specific associations between city-level women's empowerment and income inequality with individual-level overweight/obesity, assessing how these associations vary by individual education or living conditions within cities in Latin America. Data came from national surveys and censuses, and was co…
Perceived and objective neighborhood environment attributes and health related quality of life among the elderly in Bogotá, Colombia
Acculturation and physical activity among North Carolina Latina immigrants
Building a Data Platform for Cross-Country Urban Health Studies
Studies examining urban health and the environment must ensure comparability of measures across cities and countries. We describe a data platform and process that integrates health outcomes together with physical and social environment data to examine multilevel aspects of health across cities in 11 Latin American countries. We used two complementary sources to identify cities with ≥ 100,000 inhabitants as of 2010 in Argentina, Brazil, Chile, Col…
Objectively-assessed neighbourhood destination accessibility and physical activity in adults from 10 countries
Built Environment and Physical Activity for Transportation in Adults from Curitiba, Brazil
Do Health Benefits Outweigh the Costs of Mass Recreational Programs? An Economic Analysis of Four Ciclovía Programs
From causal loop diagrams to future scenarios
Urban health is shaped by a system of factors spanning multiple levels and scales, and through a complex set of interactions. Building on causal loop diagrams developed via several group model building workshops, we apply the cross-impact balance (CIB) method to understand the strength and nature of the relationships between factors in the food and transportation system, and to identify possible future urban health scenarios (i.e., permutations o…
Moderating effects of age, gender and education on the associations of perceived neighborhood environment attributes with accelerometer-based physical activity
The Ciclovia and Cicloruta Programs
Objectives. We compared participants from the Ciclovia (streets temporarily closed to motorized vehicles and open for pedestrians) and Cicloruta (bicycle paths) programs in Bogotá, Colombia, to assess associations of program participation with physical activity, safety, social capital, and equity. Methods. We conducted 2 cross-sectional studies in October 2009 with intercept surveys: one among 1000 Ciclovia participants and the other among 1000 C…
Perceived neighbourhood environmental attributes associated with adults׳ recreational walking
The path towards herd immunity
Despite unprecedented progress in developing COVID-19 vaccines, global vaccination levels needed to reach herd immunity remain a distant target, while new variants keep emerging. Obtaining near universal vaccine uptake relies on understanding and addressing vaccine resistance. Simple questions about vaccine acceptance however ignore that the vaccines being offered vary across countries and even population subgroups, and differ in terms of efficac…
Using community-based system dynamics modeling to understand the complex systems that influence health in cities
We discuss the design, implementation, and results of a collaborative process designed to elucidate the complex systems that drive food behaviors, transport, and health in Latin American cities and to build capacity for systems thinking and community-based system dynamics (CBSD) methods among diverse research team members and stakeholders. During three CBSD workshops, 62 stakeholders from 10 Latin American countries identified 98 variables and a …
Social cohesion emerging from a community-based physical activity program
Community-based physical activity programs, such as the Recreovía, are effective in promoting healthy behaviors in Latin America. To understand Recreovías’ challenges and scalability, we characterized its social network longitudinally while studying its participants’ social cohesion and interactions. First, we constructed the Main network of the program’s Facebook profile in 2013 to determine the main stakeholders and communities of participants.…
Spatial segregation patterns and association with built environment features in Colombian cities
Spatial segregation is a pressing issue in Latin American cities due to high urbanization, population density, and inequalities. This study examines segregation patterns in 84 middle to large cities in Colombia and their relationship with the spatial configuration of cities using satellite data. The analysis focuses on evenness and isolation metrics of segregation for ethnicity, education level, and employment status. The findings reveal higher s…
Do physical activity and sedentary time mediate the association of the perceived environment with BMI? The Ipen adult study
Associations of neighborhood social environment attributes and physical activity among 9–11 year old children from 12 countries
TransMilenio, a Scalable Bus Rapid Transit System for Promoting Physical Activity
Are extensions in paid parental leave associated with lower infant and neonatal mortality in Latin American cities? Evidence from 148 cities in Chile, Mexico, and Colombia (2000-2015)
We examined changes in infant and neonatal mortality that occurred after extension in the minimum number of days of paid maternity leave and after the implementation of paid paternity leave in 148 cities using longitudinal city-level data (2000-2015) from Chile, Colombia, and Mexico, compiled and harmonized by the Salud Urbana en America Latina (SALURBAL) study. For Chile we also explored variations in these associations according to the mother's…
Are Women’s Empowerment and Income Inequality Associated with Excess Weight in Latin American Cities
While income gradients and gender inequalities in excess weight have been noted elsewhere, data from Latin American cities is lacking. We analyzed gender-specific associations between city-level women's empowerment and income inequality with individual-level overweight/obesity, assessing how these associations vary by individual education or living conditions within cities in Latin America. Data came from national surveys and censuses, and was co…
Is the built-environment at origin, on route, and at destination associated with bicycle commuting? A gender-informed approach
There is limited evidence on the gender differences and location-specific built-environment factors associated with bicycling in Latin American cities. This study aimed to assess commuting in Bogotá by (1) analyzing the gender-specific trend of the standardized number of bicycle commuters during 2005-2017; and (2) assessing the socio-demographic, community, built-environment and natural factors associated with bicycle commuting stratified by gend…
Talking the Walk
Acculturation and physical activity among North Carolina Latina immigrants
Routine Physical Examination and Forgone Health Care among Latino Adolescent Immigrants in the United States
Influences of Built Environments on Walking and Cycling
Bogotá, Colombia, is well known for its sustainable urban transport systems, including an extensive network of bike lanes and set-aside street space for recreational cyclists and pedestrians on Sundays and holidays, called Ciclovía (“cycleway”). This paper examines how such facilities along with other attributes of the built environment—urban densities, land-use mixes, accessibility, and proximity to transit—are associated with walking and cyclin…
The association between Colombian medical students' healthy personal habits and a positive attitude toward preventive counseling
As for U.S. physician and medical students, a positive association was found between the personal health habits of Colombian medical students and their corresponding attitudes toward preventive counseling, independent of gender and medial training-related factors. Our findings, the first relating to this association in medical students in developing regions, also suggest that within the medical school context, interventions focused on promoting h…
Lessons Learned After 10 Years of Ipaq Use in Brazil and Colombia
Background: To describe the lessons learned after 10 years of use of the International Physical Activity Questionnaire (IPAQ) in Brazil and Colombia, with special emphasis on recommendations for future research in Latin America using this instrument. Methods: We present an analytical commentary, based on data from a review of the Latin American literature, as well as expert consultation and the authors' experience in administering IPAQ to over 43…
Perceived and objective neighborhood environment attributes and health related quality of life among the elderly in Bogotá, Colombia
Do Health Benefits Outweigh the Costs of Mass Recreational Programs? An Economic Analysis of Four Ciclovía Programs
Evidence-based intervention in physical activity
Promotion of physical activity is a priority for health agencies. We searched for reviews of physical activity interventions, published between 2000 and 2011, and identified effective, promising, or emerging interventions from around the world. The informational approaches of community-wide and mass media campaigns, and short physical activity messages targeting key community sites are recommended. Behavioural and social approaches are effective,…
Nutrition in Colombian pregnant women
Objective The present study aimed to evaluate the nutritional status of pregnant women in Colombia and the associations between gestational BMI and sociodemographic and gestational characteristics. Design Cross-sectional study. A secondary analysis was made of data from the 2005 Demographic and Health Survey of Colombia. Setting Bogotá, Colombia. Subjects Pregnant adolescents aged 13–19 years ( n 430) and pregnant women aged 20–49 years ( n 1272)…
The International Study of Childhood Obesity, Lifestyle and the Environment (Iscole)
The results of this study will provide a robust examination of the correlates of adiposity and obesity in children, focusing on both sides of the energy balance equation. The results will also provide important new information that will inform the development of lifestyle, environmental, and policy interventions to address and prevent childhood obesity that may be culturally adapted for implementation around the world. ISCOLE represents a multi-n…
Sharing good News across the world
We have proposed country-specific modifications to the original scoring protocol of the NEWS/NEWS-A that enhance inter-country comparability. These modifications have yielded sufficiently equivalent measurement models of the NEWS/NEWS-A. Some inter-country discrepancies remain. These need to be considered when interpreting findings from different countries
Socio-economic inequalities in malnutrition among children and adolescents in Colombia
Objective To examine socio-economic inequalities in malnutrition among Colombian children and adolescents, and to assess the contribution of individual-, household- and community-level factors to those inequalities. Design Cross-sectional data were used from two sources: 2005 Colombian Demographic and Health Survey and 2005 Colombian census. Malnutrition outcomes included stunting and overweight. Multilevel Poisson models were used to estimate th…
Comparing three body mass index classification systems to assess overweight and obesity in children and adolescents
There is a lack of consistency among the three main international systems in assessing overweight and obesity in children and adolescents. Appreciably different estimates of prevalence and associations with age and sex are obtained depending on which system is used. Future studies should assess how well each system reflects valid measures of body composition
Built Environment and Physical Activity for Transportation in Adults from Curitiba, Brazil
The Ciclovia and Cicloruta Programs
Objectives. We compared participants from the Ciclovia (streets temporarily closed to motorized vehicles and open for pedestrians) and Cicloruta (bicycle paths) programs in Bogotá, Colombia, to assess associations of program participation with physical activity, safety, social capital, and equity. Methods. We conducted 2 cross-sectional studies in October 2009 with intercept surveys: one among 1000 Ciclovia participants and the other among 1000 C…
Perceived neighbourhood environmental attributes associated with adults׳ recreational walking
Moderating effects of age, gender and education on the associations of perceived neighborhood environment attributes with accelerometer-based physical activity
Physical activity in relation to urban environments in 14 cities worldwide
International comparisons of the associations between objective measures of the built environment and transport-related walking and cycling
Proportion of children meeting recommendations for 24-hour movement guidelines and associations with adiposity in a 12-country study
BACKGROUND: The Canadian 24-h movement guidelines were developed with the hope of improving health and future health outcomes in children and youth. The purpose of this study was to evaluate adherence to the 3 recommendations most strongly associated with health outcomes in new 24-h movement guidelines and their relationship with adiposity (obesity and body mass index z-score) across countries participating in the International Study of Childhood…
TransMilenio, a Scalable Bus Rapid Transit System for Promoting Physical Activity
The Recreovía of Bogotá, a Community-Based Physical Activity Program to Promote Physical Activity among Women
Community-based physical activity (PA) programs in Latin America have been recognized because of the use of available environmental resources to offer PA classes. Yet, the evaluation of programs focused on PA classes involving dancing in public spaces is limited. The aim of this study was to assess the physical activity levels, park use, and the contextual characteristics of public parks with and without the Recreovía in Bogotá in Colombia. Al Ri…
Socioeconomic status and dietary patterns in children from around the world
This study provides evidence of diet-SES gradients across all levels of human development and that lower within-country SES is strongly related to unhealthy dietary patterns. Consistency in within-country diet-SES gradients suggest that interventions and public health strategies aimed at improving dietary patterns among children may be similarly employed globally. However, future studies should seek to replicate these findings in more representat…
Associations of neighborhood social environment attributes and physical activity among 9–11 year old children from 12 countries
Compositional data analysis for physical activity, sedentary time and sleep research
The health effects of daily activity behaviours (physical activity, sedentary time and sleep) are widely studied. While previous research has largely examined activity behaviours in isolation, recent studies have adjusted for multiple behaviours. However, the inclusion of all activity behaviours in traditional multivariate analyses has not been possible due to the perfect multicollinearity of 24-h time budget data. The ensuing lack of adjustment …
Medicine (54 obras) · Environmental health (33 obras) · Urban Transport and Accessibility (33 obras) · Psychology (32 obras) · Sociology (32 obras) · Geography (29 obras) · Obesity, Physical Activity, Diet (29 obras) · Political science (29 obras) · Demography (28 obras) · Demography (26 obras)