{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T02:47:01Z","timestamp":1772160421256,"version":"3.50.1"},"reference-count":25,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2022,7,27]],"date-time":"2022-07-27T00:00:00Z","timestamp":1658880000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100007449","name":"Takeda Science Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007449","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003478","name":"Ministry of Health, Labour and Welfare","doi-asserted-by":"publisher","award":["JPMH20HA2007"],"award-info":[{"award-number":["JPMH20HA2007"]}],"id":[{"id":"10.13039\/501100003478","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Influenza Resp Viruses"],"published-print":{"date-parts":[[2022,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Quantifying the impact on COVID\u201019 transmission from a single event has been difficult due to the virus transmission dynamics, such as lag from exposure to reported infection, non\u2010linearity arising from the person\u2010to\u2010person transmission, and the modifying effects of non\u2010pharmaceutical interventions over time. To address these issues, we aimed to estimate the COVID\u201019 transmission risk of social events focusing on the Japanese Coming\u2010of\u2010Age Day and Coming\u2010of\u2010Age ceremony in which \u201cnew adults\u201d practice risky behavior on that particular day.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Using national surveillance data in Japan in 2021 and 2022, we conducted difference\u2010in\u2010differences regression against COVID\u201019 incidences by setting \u201cnew adults\u201d cases as the treatment group and the cases 1\u00a0year younger or older than these \u201cnew adults\u201d as the control group. In addition, we employed a triple differences approach to estimate the risk of holding the Coming\u2010Age ceremony by using a binary variable regarding the presence or absence of the ceremony in each municipality.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We estimated the relative risks (RRs) of the Coming\u2010of\u2010Age Day as 1.27 (95% confidence interval [CI] 1.02\u20131.57) in 2021 and 3.22 (95% CI 2.68\u20133.86) in 2022. The RR of the Coming\u2010of\u2010Age ceremony was also large, estimated as 2.83 (1.81\u20134.43) in 2022.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>When planning large social events, it is important to be aware of the unique risks associated with these gatherings, along with effective public health messages to best communicate these risks.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/irv.13027","type":"journal-article","created":{"date-parts":[[2022,7,27]],"date-time":"2022-07-27T09:46:04Z","timestamp":1658915164000},"page":"1026-1032","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Impact of the Coming\u2010of\u2010Age Day and ceremony on the risk of SARS\u2010CoV\u20102 transmission in Japan: A natural\u2010experimental study based on national surveillance data"],"prefix":"10.1111","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3493-0180","authenticated-orcid":false,"given":"Yura K.","family":"Ko","sequence":"first","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"},{"name":"Department of Virology Tohoku University Graduate School of Medicine  Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0116-4598","authenticated-orcid":false,"given":"Ryo","family":"Kinoshita","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masato","family":"Yamauchi","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kanako","family":"Otani","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Taro","family":"Kamigaki","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuki","family":"Kasuya","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"},{"name":"Department of Political Science Waseda University Graduate School of Political Science  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daisuke","family":"Yoneoka","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8711-7636","authenticated-orcid":false,"given":"Yuzo","family":"Arima","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yusuke","family":"Kobayashi","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5215-1500","authenticated-orcid":false,"given":"Takeshi","family":"Arashiro","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miyako","family":"Otsuka","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3265-7950","authenticated-orcid":false,"given":"Reiko","family":"Shimbashi","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8340-0880","authenticated-orcid":false,"given":"Motoi","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Center for Surveillance, Immunization, and Epidemiologic Research National Institute of Infectious Diseases  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,7,27]]},"reference":[{"key":"e_1_2_9_2_1","volume-title":"Visualizing the Data: Information on COVID\u201019 Infections [Internet]","author":"Minisyty of Health, Labour and 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[Internet]"},{"key":"e_1_2_9_11_1","volume-title":"Population and Households in Japan derived from the basic resident registration (by Municipality). [Internet]","author":"Ministry of Internal Affairs and Communications","year":"2022"},{"key":"e_1_2_9_12_1","volume-title":"System of Social and Demographic Statistics, Statistical Observations of Municipalities 2021","author":"e\u2010Stat, Portal Site of Official Statistics of Japan","year":"2022"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41591\u2010020\u20100869\u20105"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.lanepe.2021.100278"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.2807\/1560\u20107917.ES.2021.26.50.2101147"},{"key":"e_1_2_9_16_1","volume-title":"The 79th Meeting of the Advisory Board for COVID\u201019 (April 6, 2022) [Internet]","author":"Ministry of Health, Labour and Welfare","year":"2022"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijregi.2022.01.003"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12976\u2010021\u201000146\u2010x"},{"key":"e_1_2_9_19_1","volume-title":"The 70th Meeting of the Advisory Board for COVID\u201019 (February 2, 2022). [Internet]","author":"Ministry of Health, Labour and Welfare","year":"2022"},{"key":"e_1_2_9_20_1","volume-title":"2022 Toshima Coming of Age Day Gathering [Internet]","year":"2022"},{"key":"e_1_2_9_21_1","volume-title":"The Degree of 2021 Suginami City Coming\u2010of\u2010Age Ceremony \u201cGathering of Adult Celebration\u201d [Internet]","year":"2022"},{"key":"e_1_2_9_22_1","volume-title":"About Holding of Gathering of Abeno Ward Coming\u2010of\u2010Age Day Commemoration [Internet]","year":"2022"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijid.2022.01.036"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41591\u2010020\u20101092\u20100"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.7883\/yoken.JJID.2020.363"},{"key":"e_1_2_9_26_1","first-page":"387","volume-title":"It Depends on How You Ask: Measuring Bias in Population Surveys of Compliance With COVID\u201019 Public Health Guidance","author":"Timmons S","year":"2021"}],"container-title":["Influenza and Other Respiratory Viruses"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/irv.13027","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/irv.13027","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/irv.13027","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,7,31]],"date-time":"2024-07-31T12:01:32Z","timestamp":1722427292000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/irv.13027"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,7,27]]},"references-count":25,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2022,11]]}},"alternative-id":["10.1111\/irv.13027"],"URL":"https:\/\/doi.org\/10.1111\/irv.13027","archive":["Portico"],"relation":{"has-review":[{"id-type":"doi","id":"10.1111\/IRV.13027\/v1\/decision1","asserted-by":"object"}]},"ISSN":["1750-2640","1750-2659"],"issn-type":[{"value":"1750-2640","type":"print"},{"value":"1750-2659","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,7,27]]},"assertion":[{"value":"2022-07-14","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-07-16","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-07-27","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}