Co-occurrence of habit-forming risk behaviors and their socio-demographic, health status and lifestyle determinants: a population-based cross-sectional study.

"Declarations Ethics approval and consent to participateThe NutriNet-Santé cohort study is conducted according to the Declaration of Helsinki guidelines. It was approved by the Institutional Review Board of the French Institute for Health and Medical Research (INSERM # 00000388FWA00005831) and by the National Commission on Informatics and Liberty (CNIL # 908450 and # 909216). NutriNet-Santé is registered at: https://clinicaltrials.gov/ct2/show/NCT03335644. Electronic informed consent was obtained from all volunteers prior to inclusion in the cohort. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding The NutriNet-Santé study is supported by the French Ministry of Solidarity and Health, the National Agency for Public Health (Santé Publique France), the National Institute for Health and Medical Research (INSERM), the National Research Institute for Agriculture, Food and Environment (INRAE), the National Conservatory of Arts and Crafts (CNAM), the Center for Epidemiological Research and Statistics (CRESS), and Sorbonne Paris Nord University. Junko Kose is funded by a doctoral fellowship provided by the French Ministry of Education via Sorbonne Paris Nord University. Pauline Duquenne is funded by the French National Research Agency (grant # ANR-21-CE36-0003). The funders had no role in the design of the study; in the collection, analysis, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results."

"NutriNet-Santé is an ongoing prospective cohort launched in France in 2009. The main objectives are to investigate the multifaceted relationship between nutrition and health, as well as the determinants of dietary behaviors and physical activity. Its design and protocol were detailed elsewhere []. Briefly, recurrent multimedia calls target adults aged 18 years and older who are able to follow an Internet-based study protocol in French (https://etude-nutrinet-sante.fr/). NutriNet-Santé was approved by the Institutional Review Board of the French Institute for Health and Medical Research and by the National Commission on Informatics and Liberty. The cohort is registered at: https://clinicaltrials.gov/ct2/show/NCT03335644. Eligible volunteers provide informed consent prior to enrollment."