@article{baillet_association_2024,
	title = {Association {Between} {COVID}-19 and {Self}-{Harm}: {Nationwide} {Retrospective} {Ecological} {Spatiotemporal} {Study} in {Metropolitan} {France}},
	volume = {10},
	copyright = {Unless stated otherwise, all articles are open-access distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work ("first published in the Journal of Medical Internet Research...") is properly cited with original URL and bibliographic citation information. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.},
	shorttitle = {Association {Between} {COVID}-19 and {Self}-{Harm}},
	url = {https://publichealth.jmir.org/2024/1/e52759},
	doi = {10.2196/52759},
	abstract = {Background: The COVID-19 pandemic has not been associated with increases in suicidal behaviour at the national, regional, or county level. However, previous studies were not conducted on a finer scale or adjusted for ecological factors. Objective: Our objective was to assess the fine-scale spatiotemporal association between self-harm and COVID-19 hospitalizations, while considering ecological factors. Methods: Using the French national hospital discharge database, we extracted data on hospitalizations of patients aged over 10 years old for self-harm (from 2019 to 2021) or for COVID-19 (from 2020 to 2021) in metropolitan France. We first calculated monthly standardized incidence ratios (SIRs) for COVID-19 between March 2020 and December 2021, using a Besag, York, and Mollié spatiotemporal model. Next, we entered the SIRs into an ecological regression, in order to test the association between hospital admissions for self-harm and those for COVID-19. Lastly, we adjusted for ecological variables with time lags of 0 to 6 months. Results: Compared with a smoothed SIR of ≤1, smoothed SIRs from 1 to 3, from 3 to 4 and greater than 4 for COVID-19 hospital admissions were associated with a subsequent increase in hospital admissions for self-harm, with a time lag of 2 to 4 months, 4 months, and 6 months, respectively. Conclusions: A high SIR for hospital admissions for COVID-19 was a risk factor for hospital admission for self-harm some months after the epidemic peaks. This finding emphasizes the importance of monitoring and seeking to prevent suicide attempts outside the epidemic peak periods.},
	language = {EN},
	number = {1},
	urldate = {2024-08-29},
	journal = {JMIR Public Health and Surveillance},
	author = {Baillet, Maëlle and Wathelet, Marielle and Lamer, Antoine and Frévent, Camille and Fovet, Thomas and D'Hondt, Fabien and Notredame, Charles-Edouard and Vaiva, Guillaume and Génin, Michael},
	month = aug,
	year = {2024},
	note = {Company: JMIR Public Health and Surveillance
Distributor: JMIR Public Health and Surveillance
Institution: JMIR Public Health and Surveillance
Label: JMIR Public Health and Surveillance
Publisher: JMIR Publications Inc., Toronto, Canada},
	pages = {e52759},
}

{"_id":"ziCAZ8Hq8etLDTv4j","bibbaseid":"baillet-wathelet-lamer-frvent-fovet-dhondt-notredame-vaiva-etal-associationbetweencovid19andselfharmnationwideretrospectiveecologicalspatiotemporalstudyinmetropolitanfrance-2024","author_short":["Baillet, M.","Wathelet, M.","Lamer, A.","Frévent, C.","Fovet, T.","D'Hondt, F.","Notredame, C.","Vaiva, G.","Génin, M."],"bibdata":{"bibtype":"article","type":"article","title":"Association Between COVID-19 and Self-Harm: Nationwide Retrospective Ecological Spatiotemporal Study in Metropolitan France","volume":"10","copyright":"Unless stated otherwise, all articles are open-access distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work (\"first published in the Journal of Medical Internet Research...\") is properly cited with original URL and bibliographic citation information. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.","shorttitle":"Association Between COVID-19 and Self-Harm","url":"https://publichealth.jmir.org/2024/1/e52759","doi":"10.2196/52759","abstract":"Background: The COVID-19 pandemic has not been associated with increases in suicidal behaviour at the national, regional, or county level. However, previous studies were not conducted on a finer scale or adjusted for ecological factors. Objective: Our objective was to assess the fine-scale spatiotemporal association between self-harm and COVID-19 hospitalizations, while considering ecological factors. Methods: Using the French national hospital discharge database, we extracted data on hospitalizations of patients aged over 10 years old for self-harm (from 2019 to 2021) or for COVID-19 (from 2020 to 2021) in metropolitan France. We first calculated monthly standardized incidence ratios (SIRs) for COVID-19 between March 2020 and December 2021, using a Besag, York, and Mollié spatiotemporal model. Next, we entered the SIRs into an ecological regression, in order to test the association between hospital admissions for self-harm and those for COVID-19. Lastly, we adjusted for ecological variables with time lags of 0 to 6 months. Results: Compared with a smoothed SIR of ≤1, smoothed SIRs from 1 to 3, from 3 to 4 and greater than 4 for COVID-19 hospital admissions were associated with a subsequent increase in hospital admissions for self-harm, with a time lag of 2 to 4 months, 4 months, and 6 months, respectively. Conclusions: A high SIR for hospital admissions for COVID-19 was a risk factor for hospital admission for self-harm some months after the epidemic peaks. This finding emphasizes the importance of monitoring and seeking to prevent suicide attempts outside the epidemic peak periods.","language":"EN","number":"1","urldate":"2024-08-29","journal":"JMIR Public Health and Surveillance","author":[{"propositions":[],"lastnames":["Baillet"],"firstnames":["Maëlle"],"suffixes":[]},{"propositions":[],"lastnames":["Wathelet"],"firstnames":["Marielle"],"suffixes":[]},{"propositions":[],"lastnames":["Lamer"],"firstnames":["Antoine"],"suffixes":[]},{"propositions":[],"lastnames":["Frévent"],"firstnames":["Camille"],"suffixes":[]},{"propositions":[],"lastnames":["Fovet"],"firstnames":["Thomas"],"suffixes":[]},{"propositions":[],"lastnames":["D'Hondt"],"firstnames":["Fabien"],"suffixes":[]},{"propositions":[],"lastnames":["Notredame"],"firstnames":["Charles-Edouard"],"suffixes":[]},{"propositions":[],"lastnames":["Vaiva"],"firstnames":["Guillaume"],"suffixes":[]},{"propositions":[],"lastnames":["Génin"],"firstnames":["Michael"],"suffixes":[]}],"month":"August","year":"2024","note":"Company: JMIR Public Health and Surveillance Distributor: JMIR Public Health and Surveillance Institution: JMIR Public Health and Surveillance Label: JMIR Public Health and Surveillance Publisher: JMIR Publications Inc., Toronto, Canada","pages":"e52759","bibtex":"@article{baillet_association_2024,\n\ttitle = {Association {Between} {COVID}-19 and {Self}-{Harm}: {Nationwide} {Retrospective} {Ecological} {Spatiotemporal} {Study} in {Metropolitan} {France}},\n\tvolume = {10},\n\tcopyright = {Unless stated otherwise, all articles are open-access distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work (\"first published in the Journal of Medical Internet Research...\") is properly cited with original URL and bibliographic citation information. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.},\n\tshorttitle = {Association {Between} {COVID}-19 and {Self}-{Harm}},\n\turl = {https://publichealth.jmir.org/2024/1/e52759},\n\tdoi = {10.2196/52759},\n\tabstract = {Background: The COVID-19 pandemic has not been associated with increases in suicidal behaviour at the national, regional, or county level. However, previous studies were not conducted on a finer scale or adjusted for ecological factors. Objective: Our objective was to assess the fine-scale spatiotemporal association between self-harm and COVID-19 hospitalizations, while considering ecological factors. Methods: Using the French national hospital discharge database, we extracted data on hospitalizations of patients aged over 10 years old for self-harm (from 2019 to 2021) or for COVID-19 (from 2020 to 2021) in metropolitan France. We first calculated monthly standardized incidence ratios (SIRs) for COVID-19 between March 2020 and December 2021, using a Besag, York, and Mollié spatiotemporal model. Next, we entered the SIRs into an ecological regression, in order to test the association between hospital admissions for self-harm and those for COVID-19. Lastly, we adjusted for ecological variables with time lags of 0 to 6 months. Results: Compared with a smoothed SIR of ≤1, smoothed SIRs from 1 to 3, from 3 to 4 and greater than 4 for COVID-19 hospital admissions were associated with a subsequent increase in hospital admissions for self-harm, with a time lag of 2 to 4 months, 4 months, and 6 months, respectively. Conclusions: A high SIR for hospital admissions for COVID-19 was a risk factor for hospital admission for self-harm some months after the epidemic peaks. This finding emphasizes the importance of monitoring and seeking to prevent suicide attempts outside the epidemic peak periods.},\n\tlanguage = {EN},\n\tnumber = {1},\n\turldate = {2024-08-29},\n\tjournal = {JMIR Public Health and Surveillance},\n\tauthor = {Baillet, Maëlle and Wathelet, Marielle and Lamer, Antoine and Frévent, Camille and Fovet, Thomas and D'Hondt, Fabien and Notredame, Charles-Edouard and Vaiva, Guillaume and Génin, Michael},\n\tmonth = aug,\n\tyear = {2024},\n\tnote = {Company: JMIR Public Health and Surveillance\nDistributor: JMIR Public Health and Surveillance\nInstitution: JMIR Public Health and Surveillance\nLabel: JMIR Public Health and Surveillance\nPublisher: JMIR Publications Inc., Toronto, Canada},\n\tpages = {e52759},\n}\n\n","author_short":["Baillet, M.","Wathelet, M.","Lamer, A.","Frévent, C.","Fovet, T.","D'Hondt, F.","Notredame, C.","Vaiva, G.","Génin, M."],"key":"baillet_association_2024","id":"baillet_association_2024","bibbaseid":"baillet-wathelet-lamer-frvent-fovet-dhondt-notredame-vaiva-etal-associationbetweencovid19andselfharmnationwideretrospectiveecologicalspatiotemporalstudyinmetropolitanfrance-2024","role":"author","urls":{"Paper":"https://publichealth.jmir.org/2024/1/e52759"},"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://api.zotero.org/users/3745736/collections/FPPE6RWQ/items?key=p2PW2qQS497ilCvf8jlSMRGr&format=bibtex&limit=100","dataSources":["jbMTLbkZHwAMvwrFD","9jtzjDGq8xfn9xiA9","EvCdEsC2AZvZsEKth","32rcJSP2nwdHwCNxn","3GW57JhuLNkW5xJr9","aoviYY6aq9rCo9DnF"],"keywords":[],"search_terms":["association","between","covid","self","harm","nationwide","retrospective","ecological","spatiotemporal","study","metropolitan","france","baillet","wathelet","lamer","frévent","fovet","d'hondt","notredame","vaiva","génin"],"title":"Association Between COVID-19 and Self-Harm: Nationwide Retrospective Ecological Spatiotemporal Study in Metropolitan France","year":2024}