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Full time researcher in social and health geography
Laboratory Géographie-cités, Paris, France

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I am conducting research devoted to spatial mechanisms of social (health) inequalities in urban areas.

My Publications
My open archives


* Social and spatial inequalities in health within cities
* Neighborhood effects
* Neighbourhood of residence, daily mobility and health
* Daily mobility and accessibility to urban resources
* Multilevel regression; Cross-level interaction


* Associate scientist CNRS, UMR 8504 Géographie-Cités, Paris, from 2010
* Visiting scholar in Department of Social and Preventive Medicine in Université de Montréal, January 2013 - July 2015.
* Post-doctoral student , Research team on the social determinants of health and healthcare (UMRS 707), INSERM, Paris, 2009-2010
* PhD student, University Paris Ouest la Défense and Institut de Recherche pour le Développement, Vientiane (Lao PDR), 2004-2008


* PhD in Geography, University of Paris Ouest la Défense, 2008
* Master in Health Geography, University of Paris Ouest La Défense, 2004
* Master in GIS and Remote Sensing, University of Toulouse, 2002


Mobiliscope : Cities around the clock
Mobiliscope is a free and open-source web mapping platform for the interactive exploration of cities around the clock. Using large origin-destination surveys, the Mobiliscope displays maps and segregation indices in 22 French city regions over the 24 h a day.

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RelatHealth : A relational approach to place effect on health in cities
In Paris (France) and Montreal (Canada) we propose to adopt more relational approach to place effects on health considering people’ place experiences (though daily mobility and perceived neighborhood) . The project aims at exploring the spatial logics of intra-urban inequalities in health through the following question: in which extent spatial accessibility to resources and social interactions– that do not only depend on the geographic localization of resources and population but also result of people’s place experiences – are involved in intra-urban inequalities in health?


Scientific programs
* Interdisciplinary Study of Inequalities in Smoking (ISIS) - Montréal - coordinated by Katherine Frohlich
* Etude "Residential Environment and CORonary heart Disease" (RECORD) - Paris - coordonnated by Basile Chaix
* Santé, Inégalités et Ruptures Sociales (SIRS) - Paris - coordinated by Gwenn Menvielle and Pierre Chauvin
* Understanding the role of contrasting urban contexts in healthy aging (CURHA) - Montréal, Paris, Luxembourg - coordinated by Yan Kestens

* Institut de Recherche en santé publique de l’Université de Montréal (IRSPUM)
* Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM)
* Spatial Health Research Lab à Montréal (SphereLab)
* Equipe EQUITY "Embodiment, social ineQualities, lifecoUrse epidemiology, cancer and chronIc diseases, intervenTions, methodologY" du pôle Épidémiologie et analyses en santé publique (EQUITY; Inserm -Université Paul Sabatier)
* Équipe de recherche en Épidémiologie Sociale de l’Institut Pierre Louis d’Epidémiologie et de Santé Publique (ERES; Inserm - Université Pierre et Marie Curie)
* Équipe de recherche "Environnement, Mobilité et Santé" de l’Institut Pierre Louis d’Epidémiologie et de Santé Publique (NEMESIS; Inserm - Université Pierre et Marie Curie)


Refereed articles - english

Vallée J. 2018. Urban isolation and daytime neighborhood social composition from twitter data. PNAS - Proceedings of the National Academy of Sciences (letter). 115(51). Text

Shareck M, Datta G D, Vallée J, Kestens Y, Frohlich KL. 2018. Is Smoking Cessation in Young Adults Associated With Tobacco Retailer Availability in Their Activity Space? Nicotine and Tobacco Research. Abstract

Vallée J, 2017. The daycourse of place. Social Science & Medicine. Vol 194, pp 177-181. Text / Author version

Vallée J, 2017. Challenges in targeting areas for public action. Target areas at the right place and at the right time. Journal of Epidemiology and Community Health. 71(10), pp. 945-946. Text / Author version

Chaix B, Duncan D, Vallée J, Vernez-Moudon A, Benmarhnia T, Kestens Y, 2017. The "residential" effect fallacy in neighborhood and health studies: formal definition, empirical identification, and correction Epidemiology 28(6), pp 789–797. Open text

Le Roux G, Vallée J, Commenges H, 2017. Social segregation around the clock in the Paris region, Journal of Transport Geography, 59, pp 134-145. Open text / Author version.

Kestens Y, Chaix B, Gerber P, Desprès M, Gauvin L, Klein O, Klein S, Köppen B, Lord S, Naud A, Payette H, Richard L, Rondier P, Shareck M, Sueur C, Thierry B, Vallée J, Wasfi R, 2016. Understanding the role of contrasting urban contexts in healthy aging: An international cohort study using wearable sensor devices (The CURHA study protocol), BMC Geriatrics. 16:96. Open text

Shareck M, Kestens Y, Vallée J, Datta G, Frohlich K, 2016. The added value of accounting for activity space when examining the association between tobacco retailers and smoking among young adults. Tobacco Control 25:4 406-412. Text

Vallée J, Le Roux G, Chaix B, Kestens Y, Chauvin P, 2015. The ‘constant size neighbourhood trap’ in accessibility and health studies. Urban Studies. Vol. 52(2) 338–357. Text / Author version

Frohlich K, Shareck M, Vallée J, Abel T, Agouri R, Cantinotti, M, Daniel M, Dassa C, Datta G, Gagné T, Leclerc B.S, Kestens Y, O’Loughlin J, Potvin L, 2015. Cohort Profile: The Interdisciplinary Study of Inequalities in Smoking (ISIS), International Journal of Epidemiology. (2017) 46 (2): e4. Open text

Vallée J, Shareck M, 2014, Can we claim spatial misclassification of neighborhood exposures without any reference to people? Re: Examination of How Neighborhood Definition Influences Measurements of Youths’ Access to Tobacco Retailers- A Methodological Note on Spatial Misclassification. American Journal of Epidemiology - Letter to the Editor 179(5): 660–662. Open text

Chaix B, Simon C, Charreire H, Thomas F, Kestens Y, Karusisi N, Vallée J, Oppert JM, Weber C, Pannier B, 2014. The environmental correlates of overall and neighborhood based recreational walking (a cross-sectional analysis of the RECORD Study, International Journal of Behavioral Nutrition and Physical Activity. 11:20. Open text

Chaix B, Méline J, Duncan S, Jardinier L, Perchoux C, Vallée J, Merrien C, Karusisi N, Lewin A, Brondeel R, Kestens Y, 2013. Neighborhood environments, mobility, and health: Towards a new generation of studies in environmental health research. Revue d’Epidemiologie et de Santé Publique. 61 Suppl 3: 139-45. Text

Vallée J, Chauvin P, 2012. Investigating the effects of medical density on health-seeking behaviours using a multiscale approach to residential and activity spaces. Results from a prospective cohort study in the Paris metropolitan area, France. International Journal of Health Geographics 11:54. Open text

Grillo F, Vallée J, Chauvin P, 2012. Inequalities in cervical cancer screening for women with or without a gynaecological follow-up, in Paris, France. Preventive Medicine. 54 (3–4), pp 259–265.

Vallée J, Cadot E, Roustit C, Parizot I, Chauvin P, 2011. The role of daily mobility in mental health inequalities: the interactive influence of activity space and neighbourhood of residence on depression. Social Science & Medicine, 73 (8), pp 1133-1144. Text / Author version

Grimaud O, Béjot Y, Heritage Z, Vallée J, Durier J, Cadot E, Giroud M, Chauvin P, 2011. Incidence of stroke and socioeconomic neighbourhood characteristics. An ecological analysis of Dijon Stroke Registry. Stroke. March 10.

Vallée J, Cadot E, Grillo F, Parizot I, Chauvin P, 2010. The combined effects of perceived activity space and neighbourhood of residence on participation in preventive health-care activities. The case of cervical screening in the Paris metropolitan area (France). Health & Place, 16(5), 838-852. Text / Author version

Vallée J , Thaojaikong T, Moore C E, Phetsouvanh R, Richards A L, Souris M, Fournet F, Salem G, Gonzalez JP, Newton P, 2010. Contrasting spatial distribution and risk factors for past infection with scrub typhus and murine typhus in Vientiane City, Lao PDR. Plos Neglected Tropical Diseases 4(12). Open text

Vallée J, Dubot-Pérès A, Ounaphom P, Sayavong C, Bryant J, Gonzalez JP, 2009. Spatial distribution and risk factors of dengue and Japanese encephalitis virus infection in urban settings: The case of Vientiane, Lao PDR. Tropical Medicine & International Health, 14 (9), pp 1134-1142. Text / Author version

Barennes H, Simmala C, Odermatt P, Thaybouavone T, Vallée J, Newton P, Vongprachan P, Martinez-Useel B, Vongprachan P, Strobel M, 2009. Postpartum traditions and nutrition practices among urban Lao women and their infants" in Vientiane, Lao PDR. European Journal of Clinical Nutrition, 63(3), pp 323-31.

Vallée J, Souris M, Fournet F, Bochaton A, Mobillion V, Peyronnie K, Salem G, 2007. Sampling in health geography: reconciling geographical objectives and probabilistic methods. An example of a health survey in Vientiane, Lao PDR. Emerging Themes in Epidemiology, 4:6. Open text

Vallée J, Marrama L, Fontenille D, Ly AB, Trape JF, Sarr F, Rogier C, Tall A, Nabeth P, 2006. The Geographical Study of Anopheline Densities on a Small Space, using Satellite Imagery and Geographical Information Systems. International Journal of GeoInformatics, Volume 2, Number 4, 29-34. Author version

PhD Thesis

Urbanisation et santé à Vientiane (Laos) : les disparités spatiales de santé dans la ville. Thèse de géographie. Université Paris Ouest la Défense. 2008.
PhD Manuscript

Oral communications in english from 2013 - Selection

Vallée J, The challenges of targeting priority areas from priority groups in public health interventions. 17th International Medical Geography Symposium, Angers (France), July 2-7, 2017

Vallée J. For a relational approach to place effects on health in cities. RelatHealth, a time-geographically inspired project. 2nd International Time-Geography Conference, Linkoping (Sweden), Sept 21-23, 2016.

Frohlich K, Vallée J, Shareck M, Datta G, Kestens Y. What exists is what you get? An exploration of the problem of health-related resource availability versus accessibility for health promotion, 22nd IUHPE World Conference on Health Promotion, 2-26 May 2016, Brazil.

Vallée J, Frohlich K, Shareck M, Datta G, Kestens Y. Do density of services and access to transportation relate to young adults’ mental health? Not equally for everyone. 16th International Medical Geography Symposium, Vancouver (Canada), July 6-10, 2015

Vallée J, Le Roux G, Kestens Y, Chaix B, Chauvin P. The ‘constant size neighbourhood trap’ in accessibility studies. Association of American Geographers (AAG) Annual Meeting, Tampa (USA) 8-12th of April 2014.

Vallée J, Shareck M, Kestens Y, Frohlich K. Variability in inhabitant’s place experiences and inequalities in health-related resources accessibility in Montreal, Canada, 18th European Colloquium on Quantitative and Theoretical Geography (ECQTG2013), Dourdan, France, September 5-9th 2013.

Vallée J, Shareck M, Kestens Y, Frohlich Y, Variability in inhabitant’s place experiences and inequalities in health-related resources accessibility in Montreal, Canada, 18th European Colloquium on Quantitative and Theoretical Geography (ECQTG2013), Dourdan, France, 5-9 septembre 2013.

Vallée J, Le Roux G, Kestens Y, Chaix B, Chauvin P. The “Constant Size Neighbourhood Trap”. Variability in Size of Resident Perceived Neighbourhoods and Geographical Accessibility to Local Health Resources in the Paris Metropolitan Area. International Medical Geography Symposium East Lansing, Michigan, USA, July 7-12, 2013

Vallée J, Shareck M, Kestens Y, Frohlich Y. Place experiences and well-being of young adults in Montreal, Canada. International Medical Geography Symposium East Lansing, Michigan, USA, July 7-12, 2013


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