Yan Kestens

Yan Kestens
Université de Montréal | UdeM · Department of Social and Preventive Medicine

Ph.D.

About

217
Publications
31,411
Reads
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5,963
Citations
Additional affiliations
July 2006 - present
July 2006 - present
Université de Montréal
Position
  • Professor (Associate)

Publications

Publications (217)
Article
Full-text available
In a recent paper by Melis and colleagues [1], exposure to certain built environment characteristics-urban density and accessibility to public transit-is found to be related to mental health, even more so among women, the elderly, and the residentially stable (interactions between built environment and individual characteristics in relation to ment...
Article
Full-text available
Background Given the challenges of aging populations, calls have been issued for more sustainable urban re-development and implementation of local solutions to address global environmental and healthy aging issues. However, few studies have considered older adults’ daily mobility to better understand how local built and social environments may cont...
Article
Background: GPS tracking is increasingly used to document daily mobility, allowing refined analysis of daily exposures and health behaviour. Validation of algorithms processing raw GPS data to identify activity locations and trips are lacking. Objective: Propose novel ways to evaluate GPS processing algorithms data while validating an existing k...
Article
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Purpose of review: The aim of this paper is to review the recent advances in health and place research and discuss concepts useful to explore how context affects health. More specifically, it reviews measures and tools used to account for place; concepts relating to daily mobility and multiple exposure to places, and further points to the intertwi...
Article
Full-text available
Background Urban form interventions can result in positive and negative impacts on physical activity, social participation, and well-being, and inequities in these outcomes. Natural experiment studies can advance our understanding of causal effects and processes related to urban form interventions. The INTErventions, Research, and Action in Cities...
Article
Full-text available
Background Built and social environments are associated with physical activity. Global Positioning Systems (GPS) and accelerometer data can capture how people move through their environments and provide promising tools to better understand associations between environmental characteristics and physical activity. The purpose of this study is to exam...
Article
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PurposeAdolescence is characterized by the ongoing maturation of emotion-regulation skills and increased emotional reactivity. There is a need for a measurement tool suitable to the Ecological Momentary Assessment methodology, to better capture within-day variations in well-being, and provide fine-grained data that can help understand how environme...
Preprint
With the advent of the COVID-19 pandemic, in-person social interactions and opportunities for accessing resources that sustain health and well-being have drastically reduced. We therefore designed the pan-Canadian population-based prospective COVID-19: HEalth and Social Inequities across Neighbourhoods (COHESION) cohort to provide deeper understand...
Article
Full-text available
Background Walkability is a popular term used to describe aspects of the built and social environment that have important population-level impacts on physical activity, energy balance, and health. Although the term is widely used by researchers, practitioners, and the general public, and multiple operational definitions and walkability measurement...
Article
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Neighborhoods are complex, multidimensional systems. However, the interrelation between multiple neighborhood dimensions is seldom considered in relation to youth adiposity. We created a neighborhood typology using a range of built environment features and examined its association with adiposity in youth. Analyses are based on data from the QUALITY...
Article
Introduction Light Rail Transit offers the potential to encourage physical activity, but the extent to which it does may depend on station design. Methods A microscale audit was conducted around the stations of the Réseau Express Métropolitain light rail network currently under construction in the Greater Montreal Area (GMA), Canada, to measure ho...
Article
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Background Recent rapid growth in urban areas and the desire to create liveable neighbourhoods has brought about a renewed interest in planning for compact cities, with concepts like the 20-minute neighbourhood (20MN) becoming more popular. A 20MN broadly reflects a neighbourhood that allows residents to meet their daily (non-work) needs within a s...
Article
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This study examined the changes in accelerometer-measured physical activity by GPS-measured contexts among Finnish retirees (n = 45 (537 measurement days)) participating in a physical activity intervention. We also assessed whether residential greenness, measured with Normalized Difference Vegetation Index, moderated the changes. Moderate-to-vigoro...
Article
Interest is growing in neighborhood effects on health beyond individual’s home locations. However, few studies accounted for selective daily mobility bias. Selective mobility of 470 older adults (aged 67-94) living in urban and suburban areas of Luxembourg, was measured through detour percentage between their observed GPS-based paths and their shor...
Article
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Lyme disease is a growing public health problem in Québec. Its emergence over the last decade is caused by environmental and anthropological factors that favour the survival of Ixodes scapularis, the vector of Lyme disease transmission. The objective of this study was to estimate the speed and direction of human Lyme disease emergence in Québec and...
Article
This article investigates everyday geography of young adults and the unequal importance that spatial accessibility to a range of urban services might have for their mental health to identify those who are truly disadvantaged. Whereas the literature on the socially differentiated vulnerability to place effects has traditionally focused on the neighb...
Preprint
Full-text available
Background Built environment interventions provide structural solutions to complex urban challenges. Though community voices are part of municipal decision-making, planners and public health professionals need tools to better integrate their perspectives for desired changes (what) in the successful implementation of built environment programs and i...
Article
Background : Closed-source software for processing and analyzing accelerometer data provides little to no information about the algorithms used to transform acceleration data into physical activity indicators. Recently, an algorithm was developed in MATLAB that replicates the frequently used proprietary ActiLife activity counts. The aim of this sof...
Article
Built environment interventions have the potential to improve population health and reduce health inequities. The objective of this paper is to present the first wave of the INTErventions, Research, and Action in Cities Team (INTERACT) cohort studies in Victoria, Vancouver, Saskatoon, and Montreal, Canada. We examine how our cohorts compared to Can...
Preprint
Lyme disease is a growing public health problem in Québec. Its emergence over the last decade is caused by environmental and anthropological factors that favour the survival of Ixodes scapularis, the vector of Lyme disease transmission. The objective of this study was to estimate the speed and direction of Lyme disease emergence in Québec and to id...
Article
In response to growing levels of social isolation and loneliness in cities, the promotion of social connectedness has come to the forefront of urban health, sustainability, and resiliency agendas. Despite policy attention locally and internationally, social connectedness is not consistently defined, conceptualized, or measured in population health...
Article
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Goals for public transit agencies and new public transport infrastructure projects include attracting new riders and retaining existing system users. An understanding of the public transport market and its preferences, habits, and attitudes can help public transit agencies reach these goals by shedding light on how to increase customer satisfaction...
Article
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Compact city development has been increasingly promoted as a tool to encourage urban sustainability and to reduce humans’ environmental footprint. The impacts of such urban development on subjective well-being (SWB), Quality of Life (QOL), and perceived health—non-monetary metrics of prosperity—have not been extensively explored in the North Americ...
Article
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Background: Researchers, policy makers, and urban planners require tools to better understand the complex relationship between gentrification and health. The Gentrification, Urban Interventions and Equity (GENUINE) tool is an open-access, map-based tool that allows users to explore measures of gentrification for Canadian cities and incorporate the...
Article
Full-text available
Objectives We examined sedentary time and physical activity in different contexts among ageing workers, between their workdays and days off, and recent retirees, between their weekdays and weekend days. Design Cross-sectional study. Setting Finnish Retirement and Aging study and Enhancing physical activity and healthy ageing among recent retirees...
Chapter
Health data are often presented on maps to demonstrate existing patterns, revealing health inequities across different urban contexts. In attempting to understand underlying factors associated with geographic variations in population health profiles, this chapter introduces general concepts, methods, and established protocols that can help explain...
Article
The Geller typology, which categorizes the population into four types of bicyclists (strong and fearless, enthused and confident, interested but concerned, and no way no how) has gained considerable popularity amongst researchers and planners. One large U.S. study used a survey-derived approach to categorize respondents into Geller’s typology, and...
Article
Full-text available
Contextual factors influencing population health have received substantial attention, especially with regard to people’s social networks and the roles of built environments in their activity spaces. Yet little health research has considered spatial and social contexts simultaneously, often because of a lack of existing data. This paper presents a t...
Article
As healthcare is a right in Canada, analyzing the distribution of spatial access to medical consultations, which are crucial for the prevention, diagnosis, and early treatment of illnesses, is fundamental to understanding health equity. Spatial accessibility can influence whether individuals can reasonably reach the services they seek. However, as...
Article
Background: Healthy communities can be supported through built environment interventions that redesign cities for improved health outcomes. Understanding the context of these interventions is critical for assessing how an intervention impacts population health; such context is often poorly documented. This study uses concept mapping to capture sta...
Article
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The article "Why public health matters today and tomorrow: the role of applied public health research," written by Lindsay McLaren et al., was originally published Online First without Open Access.
Article
Background Many studies have showed that disadvantaged areas residents have greater access to gambling sites and are more affected by gambling. Our research proposes an innovative method to characterize gambling environments in Quebec and addresses social inequality with respect to gambling exposure. Methods This cross-sectional ecological study w...
Article
Objectives Recent research by Public Health has redefined harmful gambling, shifting the focus from problematic people with irresponsible behaviour to ‘gamblogenic’ environments. The aim of this research was to support this alternative perspective with concrete ecological tools for characterizing harmful environments. Studies that analyse the spati...
Preprint
Full-text available
BACKGROUND Public health research studies often rely on population-based participation and draw on various recruitment methods to establish samples. Increasingly researchers are turning to web-based recruitment tools. However, few studies detail traditional and online recruitment efforts in terms of costs and potential biases. OBJECTIVE Our object...
Article
Background: Public health research studies often rely on population-based participation and draw on various recruitment methods to establish samples. Increasingly researchers are turning to web-based recruitment tools. However, few studies detail traditional and online recruitment efforts in terms of costs and potential biases. Objective: Our ob...
Article
Background Food shopping behaviors may help determine how local food environments influence fruit and vegetable (F/V) intake, especially among food insecure households. Objective To examine whether household food security, food access, and food shopping behaviors are associated with F/V intake among residents of a low-income neighborhood. Design...
Article
The planet is rapidly urbanizing, the need for actionable evidence to guide the design of cities that help (not hinder) our health has never felt more urgent. One essential component of healthy city design is improving neighborhood conditions in previously disinvested areas. To ensure equitable city design, policy makers, city planners, health prac...
Article
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Farmers’ market implementation holds promise for increasing access to healthy foods. Although rarely measured, purchase data constitute an intermediate outcome between food environment and actual consumption. In a study conducted with two seasonal Fruits and Vegetables (FV) stands in a disadvantaged area of Montréal (Canada), we analysed how access...
Article
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Spatial lifecourse epidemiology is an interdisciplinary field that utilizes advanced spatial, location-based, and artificial intelligence technologies to investigate the long-term effects of environmental, behavioural, psychosocial, and biological factors on health-related states and events and the underlying mechanisms. With the growing number of...
Article
Neighbourhood resources are often considered to be spatially accessible to people when they are located close to their place of residence, a perspective which overlooks individuals' unique lived experience of their neighbourhood and how they define it. Drawing on the relational approach to place and on Sen's capability approach, we explore spatial...
Article
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Background: Policymakers need accurate data to develop efficient interventions to promote transport physical activity. Given the imprecise assessment of physical activity in trips, our aim was to illustrate novel advances in the measurement of walking in trips, including in trips incorporating non-walking modes. Methods: We used data of 285 part...
Article
Full-text available
Daily mobility has been shown to contribute to the wellbeing of older adults, as it promotes healthy and independent living. However, very little is known about how the complex relationships between locations, geographic environments and daily mobility relate to wellbeing. In the current paper, we rely on the concept of 'motility'-defined as potent...
Conference Paper
Full-text available
Social networks and activity spaces have received much attention lately in public health research. Yet, these contexts are generally studied in silos, and only few studies have either considered “where” social interaction occurs or with “whom” a person does activities. During this talk, we present results from the CURHA study, an international rese...
Article
Background: Studies investigating the association between spatial accessibility to environmental resources from the various places a person visits during daily activities and use of corresponding resources often do not account for potential biases related to selective daily mobility. This bias occurs when accessibility is also measured from places...
Article
Activity space research provides a framework to consider mobility while linking environments to behaviors in the study of neighborhood effects on health. Increased use of wearable location sensors provides new opportunities to observe and analyze fine-grained spatial and temporal information on individuals' mobility patterns, environmental exposure...
Article
Background: Neighbourhood environments that support active living, such as walking or cycling for transportation, may decrease the burden of chronic conditions related to sedentary behaviour. Many measures exist to summarize features of communities that support active living, but few are pan-Canadian and none use open data sources that can be wide...
Article
Purpose: Understanding the geographical and environmental triggers for active transport among older adults is crucial to promote healthy and independent lifestyles. While transportation research has long considered trip purpose as a major determinant of transport mode choices, "place and health" research has paid little attention to it, and even le...
Article
Full-text available
Public health is critical to a healthy, fair, and sustainable society. Realizing this vision requires imagining a public health community that can maintain its foundational core while adapting and responding to contemporary imperatives such as entrenched inequities and ecological degradation. In this commentary, we reflect on what tomorrow’s public...
Article
Introduction Promoting active transport offers the potential to increase population physical activity levels. Compensation theories state that above-average physical activity in one activity is compensated in later activities; a mechanism that results in stable levels of total physical activity. Little is known about possible compensation of transp...
Article
Introduction L’analyse des effets de contexte sur la santé s’apparent encore souvent à une « boîte noire » (Susser & Susser, 1996) car elle étudie principalement les relations directes entre le contexte et la santé sans prendre en considération les mécanismes par lesquels s’exerce cette influence. Méthode Les analyses empiriques gagnent à tester s...
Article
Introduction: The presence of tobacco retailers in residential neighbourhoods has been inversely associated with residents' likelihood of quitting smoking. Few studies have yet explored whether this association holds when accounting for tobacco retailers found in the multiple environments where people conduct their daily activities, i.e., their ac...
Conference Paper
Abstract visible on this link / Abstract disponible via ce lien : https://www.sciencedirect.com/science/article/pii/S0985056218302735
Article
Introduction: Validity of research linking built environments to health relies on the availability and reliability of data used to measure exposures. As cities transform, it is important to track when and where urban changes occur, to provide detailed information for urban health intervention research. This paper presents an online observation met...
Article
Objective Alternative food sources (AFS) such as local markets in disadvantaged areas are promising strategies for preventing chronic disease and reducing health inequalities. The present study assessed how sociodemographic characteristics, physical access and fruit and vegetable (F&V) consumption are associated with market use in a newly opened F&...
Article
Ground-level ozone (O 3) is a powerful oxidizing agent and a harmful pollutant affecting human health, forests and crops. Estimating O 3 exposure is a challenge because it exhibits complex spatiotemporal patterns. The aim in this study was to provide high-resolution maps (100 × 100 m) of O 3 for the metropolitan area of Montreal, Canada. We assesse...
Article
Full-text available
Daily mobility, defined as the ability to move oneself within one’s neighborhood and regions beyond, is an important construct, which affects people as they age. Having a feasible and valid measure of daily mobility is essential to understand how it affects older adults’ everyday life. Given the limitations of existing measures, new tools may be ne...
Article
Background : Accounting for daily mobility allows assessment of multiple exposure to environments. This study compares spatial data obtained (i) from an interactive map-based questionnaire on regular activity locations (VERITAS) and (ii) from GPS tracking. Methods : 234 participants of the RECORD GPS Study completed the VERITAS questionnaire and w...
Article
Full-text available
This study examined the influence of walkability on walking behaviour and assessed whether associations varied according to life-stage and population center (PC) size. Walkability scores were obtained for the six-digit postal codes of residential neighbourhoods of 11,200 Canadians, who participated in biennial assessments of the National Population...
Poster
Communication affichée JFN, Section Santé Publique - Analyse des facteurs associés à l’utilisation des marchés - Analyse des facteurs associés aux achats effectués sur les marchés
Article
Full-text available
Background: Physical inactivity is widely recognized as one of the leading causes of mortality, and transport accounts for a large part of people's daily physical activity. This study develops a simulation approach to evaluate the impact of the Ile-de-France Urban Mobility Plan (2010-2020) on physical activity, under the hypothesis that the intend...