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A cross-sectional epidemiological survey was proposed within the NutriNet-Sant\u00e9 population-based e-cohort launched in France in 2009. Participants were 43,060 French volunteers aged 18\u2009y and over with Internet access. A self-report questionnaire assessing sleep characteristics was administered in 2014. The main outcome (dependent) variable was weekday or weekend napping (yes\/no). The main exposure (independent) variables were overweight\/obesity, hypertension, diabetes, anxiety and depressive disorders, incident major cardiovascular diseases (myocardial infarction, stroke, unstable angina), and incident cancer (breast and prostate). The associations of interest were investigated with multivariable logistic regression analysis. No significant associations were found between major cardiovascular diseases or breast or prostate cancer and napping. Instead, we found that napping was more common among males (46.1%) than among females 36.9% (p\u2009&lt;\u20090.0001). Individuals who were overweight or obese or had hypertension, diabetes, depression or anxiety disorders had an increased likelihood of napping compared with their healthy peers. The adjusted ORs ranged from 1.14 to 1.28\u2033. In conclusion, most chronic conditions were independently associated with napping. Future longitudinal analyses are needed to elucidate causality.<\/jats:p>","DOI":"10.1038\/s41598-018-37355-3","type":"journal-article","created":{"date-parts":[[2019,2,11]],"date-time":"2019-02-11T06:03:54Z","timestamp":1549865034000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["The association between physical and mental chronic conditions and napping"],"prefix":"10.1038","volume":"9","author":[{"given":"Damien","family":"L\u00e9ger","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marion J.","family":"Torres","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Virginie","family":"Bayon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Serge","family":"Hercberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pilar","family":"Galan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mounir","family":"Chennaoui","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valentina A.","family":"Andreeva","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2019,2,11]]},"reference":[{"key":"37355_CR1","unstructured":"World Health Organisation World Regional Office for Europe. 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He declares no financial or non-financial conflict of interest regarding this study. Dr. Bayon declares that she has no financial or non-financial conflict of interest. Dr. Andreeva declares that she has no financial or non-financial conflict of interest. Dr. Torres declares that she has no financial or non-financial conflict of interest. Dr. Hercberg declares that he has no financial or non-financial conflict of interest. Dr. Galan declares that she has no financial or non-financial conflict of interest. Mr. Chennaoui declares that he has no financial or non-financial conflict of interest.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing Interests"}}],"article-number":"1795"}}