Publications by Anaïs Laurence Ladoy

Geographical clusters of obesity in France related to complex longitudinal socio-behavioral profiles: findings from the GAZEL cohort

Stéphane Joost, Anaïs Laurence Ladoy, Raphael Renevey

Background/objectives: This study analyzed the temporal evolution of geographic clusters of obesity among employees of the French national gas and electricity company in the GAZEL cohort from 1990 to 2015. Subjects/methods: The study included 12,798 men an ...

2025

Spatial dependence of non-traumatic out-of-hospital cardiac arrest in a Swiss region: A retrospective analysis

Stéphane Joost, Anaïs Laurence Ladoy, David Nicolas De Ridder, Idris Guessous

Background: Out-of-hospital cardiac arrest (OHCA) incidence and survival often vary within regions according to patient-related and contextual factors. This study aims to establish the overall spatial dependence of incidence, bystander cardiopulmonary resu ...

Elsevier BV2024

Environmental and geographical factors influencing the spread of SARS-CoV-2 over 2 years: a fine-scale spatiotemporal analysis

Stéphane Joost, Anaïs Laurence Ladoy, David Nicolas De Ridder

Introduction Since its emergence in late 2019, the SARS-CoV-2 virus has led to a global health crisis, affecting millions and reshaping societies and economies worldwide. Investigating the determinants of SARS-CoV-2 diffusion and their spatiotemporal dynam ...

FRONTIERS MEDIA SA2024

The role of spatial epidemiology to support public health policies : case studies applied to health promotion, noncommunicable and infectious diseases in the canton of Vaud, Switzerland

Anaïs Laurence Ladoy

In a context of escalating public health challenges, including the rise of chronic diseases, the impact of climate change, and the COVID-19 pandemic, certain populations bear a disproportionate burden. As a result, there is an urgent need to develop public ...

EPFL2024

Detection of SARS-CoV-2 infection clusters: The useful combination of spatiotemporal clustering and genomic analyses

Stéphane Joost, Anaïs Laurence Ladoy, David Nicolas De Ridder

BackgroundThe need for effective public health surveillance systems to track virus spread for targeted interventions was highlighted during the COVID-19 pandemic. It spurred an interest in the use of spatiotemporal clustering and genomic analyses to identi ...

FRONTIERS MEDIA SA2022

Spatial clusters of daily tobacco consumption before and after a smoke-free policy implementation

Stéphane Joost, Anaïs Laurence Ladoy

This study assessed the spatial dependence of daily tobacco consumption and how it is spatially impacted by individual and neighborhood socioeconomic determinants, and tobacco consumption facilities before and after a smoke-free implementation. Individual ...

ELSEVIER SCI LTD2021

Size and duration of COVID-19 clusters go along with a high SARS-CoV-2 viral load: A spatio-temporal investigation in Vaud state, Switzerland

Séverine Vuilleumier Varisco, Stéphane Joost, Onya Opota, Anaïs Laurence Ladoy, Idris Guessous

To understand the geographical and temporal spread of SARS-CoV-2 during the first documented wave of infection in the state of Vaud, Switzerland, we analyzed clusters of positive cases using the precise residential location of 33,651 individuals tested (RT ...

2021

Geographic footprints of life expectancy inequalities in the state of Geneva, Switzerland

Stéphane Joost, Anaïs Laurence Ladoy, David Nicolas De Ridder, Idris Guessous

Though Switzerland has one of the highest life expectancies in the world, this global indicator may mask significant disparities at a local level. The present study used a spatial cluster detection approach based on individual death records to investigate ...

Nature Portfolio2021