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By using data from the Swedish CArdioPulmonary bIoimage Study (SCAPIS) cohort, we aimed to investigate the association of pet ownership with the following self-reported sleep outcomes in 3788 to 4574 participants: (i) achieving the recommended daily sleep duration for adults (i.e., at least 7\u00a0h per day); (ii) sleep quality as measured by the Pittsburgh Sleep Quality Index (a score of\u2009&gt;\u20095 indicating poor sleep quality); and (iii) difficulty falling or staying asleep. Sleep metrics were not associated with pet ownership, dog ownership, and dog walking when controlling the logistic regression for possible confounders (e.g., shift work, lack of social interaction, and chronic stress). In contrast, cat ownership was associated with a higher odds ratio of failing to achieve the recommended duration of 7\u00a0h of sleep per day (adjusted odds ratio [95% CI]:1.18 [1.02, 1.37] versus non-cat owners). Our findings suggest that certain pet groups might have a more significant impact on the owner\u2019s sleep than others. As the observed association between cat ownership and short sleep duration might be a chance finding, this observation should be seen as hypothesis-generating only.<\/jats:p>","DOI":"10.1038\/s41598-021-87080-7","type":"journal-article","created":{"date-parts":[[2021,4,2]],"date-time":"2021-04-02T10:03:08Z","timestamp":1617357788000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Association between pet ownership and sleep in the Swedish CArdioPulmonary bioImage Study (SCAPIS)"],"prefix":"10.1038","volume":"11","author":[{"given":"Lieve T.","family":"van Egmond","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olga E.","family":"Titova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eva","family":"Lindberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tove","family":"Fall","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Benedict","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,4,2]]},"reference":[{"key":"87080_CR1","doi-asserted-by":"publisher","first-page":"176","DOI":"10.1186\/s12877-018-0867-3","volume":"18","author":"G Mein","year":"2018","unstructured":"Mein, G. & Grant, R. 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C.B. reports that he served as a paid member of a scientific advisory board for Repha GmBH, Langenhagen, Germany. C.B. declares no other conflict of interests.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"7468"}}