Asset Publisher

Mobi-Expo Characterization of the use of mobile phones in children, adolescents, and young adults as part of a multi-centre epidemiological study

Martine Vrijheid
Funded by
French Agency for Food, Environmental and Occupational Health & Safety (ANSES, Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail)
Where is the study performed?

Mobi-Expo is an international study involving young people from all over the world:

Australia, Austria, Canada, France, Germany, Greece, India, Israel, Italy, Japan, Korea, New Zealand, Spain, Taiwan, The Netherlands.

What is Mobi-Expo?

Mobi-Expo is an international study coordinated by CREAL (Spain) in collaboration with UU (The Netherlands), Whist Lab (France), and IFSTARR (France). The main goal of this study is to discover how young people use their mobile phones.

To figure out how the mobile phones are used, we developed an application to keep track of the number of phone calls you make, how long you spend talking on the phone, if you use speaker phone or other hands-free kits, how much data you use, etc. No personal information (such as contacts or websites visited) is collected.

The objective is to conduct a multinational study to characterise the use of mobile phones in young people and improve the assessment of radiofrequency exposure as part of the Mobi-Kids study.

What is XMobiSense?

XMobiSense is the name of the application we developed for Android phones for use in the Mobi-Expo study. XMobiSense lets us collect information about phone use, which we will later compare to some questions we ask about your phone use.

How do I participate?

To participate in the study you need to be between 10 and 24 years old and use a mobile phone on average at least once a week to make a phone call.

If you have your own Android phone: all you need to do is install the application on your phone and answer a few questions. After a month, we will ask you to create and send us a file.

 If you do not have your own Android phone: we will lend you one with the

application already installed. You use this phone like it is your own. After a

month, we will collect the phone and ask you a few questions. After 6 months, we will ask you to answer a few more questions about how you used the phone.

Our Team

Principal Investigator (PI)

  • Martine Vrijheid
    Martine Vrijheid Research Professor and Head of the Environment and Health over the Lifecourse Programme

Our Team

Other projects

See Past Projects


Population based multicasecontrol study on common tumours in Spain


Novel tools for integrating early-life environmental exposures and child health across Europe


Early Genetics Growth/Early Genetics and Lifecourse Epidemiology


Pregnancy and Childhood Epigenetics


Early-life stressors and LifeCycle health


Network on the Coordination and Harmonisation of European Occupational Cohorts


Health effects of cArdiac fluoRoscopy and mOdern radIotherapy in paediatriCs


Connecting digital mobility assessment to clinical outcomes for regulatory and clinical endorsement


Signs of Early Adaptation to Climate Change


Cohorte Covid-19 en Cataluña


Advancing Tools for Human Early Lifecourse Exposome Research and Translation


Cohort of COVID-19 in Spain: social dynamics, mental health and inequalities


A federated FAIR platform enabling large-scale analysis of high-value cohort data connecting Europe and Canada in personalized health


An integrative strategy of testing systems for identification of EDs related to metabolic disorders


EXposome Powered tools for healthy living in urbAN SEttings


Actionable eUropean ROadmap for early-life health Risk Assessment of micro- and nanoplastics


Fine Particle Matter, Fetal Growth, and Neurodevelopment: Examining Critical Windows of Susceptibility


Pre-natal exposure to urban AIR pollution and pre- and post-Natal Brain development


The role of seafood and nut consumption on human neurodevelopment from pregnancy to adolescence


Urban and social environment and childhood obesity – a natural moving2health experiment


In-Depth Genomics and Cross-Omics Analysis for Undiagnosed Rare Diseases on a User-Friendly Collaborative Platform


An Exposome Approach to Urban Health: Individualized Environmental Exposure Assessment in an Adults Population Cohort Study (GCAT)


Digital Twins Enabled Indoor Air Quality Management for Healthy Living


The Urban Burden of Disease Estimation for POLICY Making


Combining Artificial Intelligence and smart sensing TOward better management and improved quality of LIFE in chronic obstructive pulmonary disease


Drinking Water in Barcelona: Sustainability and Health Impact Assessment


Innovative Tools to Control Organic Matter and Disinfection Byproducts in Drinking Water


FTIR spectroscopy for real-time detection of bacterial outbreaks and the rapid identification of pathogenic serotypes, relapsing infections and antibiotic resistance


Occupational exposure to radiofrequency electromagnetic fields: From exposure assessment to study of health in workers and their offspring


Exposome Project for Health and Occupational Research


Analysing and studying how night shift work affects workers' circadian rhythms and health


International Human Exposome Network


Una prueba en el punto de atención para la estratificación del riesgo de los pacientes febriles basada en los niveles de sTREM-1


e-health tools to promote Equality in Quality of Life for childhood to young adulthood cancer patients, survivors and their families