{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T23:35:14Z","timestamp":1791848114086,"version":"4.3.4"},"reference-count":24,"publisher":"BMJ","license":[{"start":{"date-parts":[[2022,1,17]],"date-time":"2022-01-17T00:00:00Z","timestamp":1642377600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ"],"accepted":{"date-parts":[[2021,12,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To explore whether and for how long use of healthcare services is increased among children and adolescents after covid-19.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Before and after register based study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>General population of Norway.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>Norwegians aged 1-19 years (n=706\u2009885) who were tested for SARS-CoV-2 from 1 August 2020 to 1 February 2021 (n=10\u2009279 positive, n=275\u2009859 negative) or not tested (n=420\u2009747) and were not admitted to hospital, by age groups 1-5, 6-15, and 16-19 years.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main outcome measures<\/jats:title>\n                    <jats:p>Monthly percentages of all cause and cause specific healthcare use in primary care (general practitioner, emergency ward) and specialist care (outpatient, inpatient) from six months before to about six months after the week of being tested for SARS-CoV-2, using a difference-in-differences approach.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A substantial short term relative increase in primary care use was observed for participants during the first month after a positive SARS-CoV-2 test result compared with those who tested negative (age 1-5 years: 339%, 95% confidence interval 308% to 369%; 6-15 years: 471%, 450% to 491%; 16-19 years: 401%, 380% to 422%). Use of primary care for the younger age groups was still increased at two months (1-5 years: 22%, 4% to 40%; 6-15 years: 14%, 2% to 26%) and three months (1-5 years: 26%, 7% to 46%, 6-15 years: 15%, 3% to 28%), but not for the oldest group (16-19 years: 11%, \u22122% to 24% and 6%, \u22127% to 19%, respectively). Children aged 1-5 years who tested positive also showed a minor long term (\u22646 months) relative increase in primary care use (13%, \u22120% to 26%) that was not observed for the older age groups, compared with same aged children who tested negative. Results were similar yet the age differences less pronounced compared with untested controls. For all age groups, the increase in primary care visits was due to respiratory and general or unspecified conditions. No increased use of specialist care was observed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Covid-19 among children and adolescents was found to have limited impact on healthcare services in Norway. Preschool aged children might take longer to recover (3-6 months) than primary or secondary school students (1-3 months), usually because of respiratory conditions.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmj-2021-066809","type":"journal-article","created":{"date-parts":[[2022,1,17]],"date-time":"2022-01-17T08:40:11Z","timestamp":1642408811000},"page":"e066809","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":69,"title":["Healthcare use in 700\u2009000 children and adolescents for six months after covid-19: before and after register based cohort study"],"prefix":"10.1136","volume":"376","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4851-5794","authenticated-orcid":false,"given":"Karin","family":"Magnusson","sequence":"first","affiliation":[{"name":"Cluster for Health Services Research, Norwegian Institute of Public Health, Postboks 222, Sk\u00f8yen, N-0213 Oslo, Norway"},{"name":"Clinical Epidemiology Unit, Department of Clinical Sciences, Orthopaedics, Faculty of Medicine, Lund University, Lund, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katrine Damgaard","family":"Skyrud","sequence":"additional","affiliation":[{"name":"Cluster for Health Services Research, Norwegian Institute of Public Health, Postboks 222, Sk\u00f8yen, N-0213 Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P\u00e5l","family":"Suren","sequence":"additional","affiliation":[{"name":"Norwegian Institute of Public Health, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Margrethe","family":"Greve-Isdahl","sequence":"additional","affiliation":[{"name":"Norwegian Institute of Public Health, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ketil","family":"St\u00f8rdal","sequence":"additional","affiliation":[{"name":"Norwegian Institute of Public Health, Oslo, Norway"},{"name":"Division of Paediatric and Adolescent Medicine, Paediatric Research Institute, University of Oslo and Oslo University Hospital, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Doris Tove","family":"Kristoffersen","sequence":"additional","affiliation":[{"name":"Cluster for Health Services Research, Norwegian Institute of Public Health, Postboks 222, Sk\u00f8yen, N-0213 Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kjetil","family":"Telle","sequence":"additional","affiliation":[{"name":"Cluster for Health Services Research, Norwegian Institute of Public Health, Postboks 222, Sk\u00f8yen, N-0213 Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2022,1,17]]},"reference":[{"key":"2025110101381642000_376.jan17_6.e066809.1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0257926"},{"key":"2025110101381642000_376.jan17_6.e066809.2","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.n693"},{"key":"2025110101381642000_376.jan17_6.e066809.3","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(20)32656-8"},{"key":"2025110101381642000_376.jan17_6.e066809.4","doi-asserted-by":"publisher","DOI":"10.1183\/13993003.03448-2020"},{"key":"2025110101381642000_376.jan17_6.e066809.5","unstructured":"Himmels JPW Qureshi SA Brurberg KG Gravningen KM . 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