{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,14]],"date-time":"2026-04-14T13:41:31Z","timestamp":1776174091555,"version":"3.50.1"},"reference-count":20,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2020,2,8]],"date-time":"2020-02-08T00:00:00Z","timestamp":1581120000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Paediatrica"],"published-print":{"date-parts":[[2020,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>We present our results using interferon\u2010gamma release assays in any child &lt;18\u00a0years or tuberculin skin tests in Bacille Calmette\u2010Gu\u00e9rin unvaccinated children for tuberculosis contact investigation in Stockholm, Sweden.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>During 2000\u20142019, we investigated 892 children with a median age of seven years. We explored associations between TB infection and characteristics such as closeness to contact, age, sex, BCG status and foreign origin.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The overall rates were for TB infection 10.2% (n\u00a0=\u00a091) and for TB disease 1.1% (n\u00a0=\u00a010). In addition to infectiousness of index case and closeness of contact, foreign background, male sex and increasing age were independently associated with infection. In foreign\u2010born children, the rates of tuberculosis infection and disease were 18.7% and 3.9%, respectively. In 18\/46 (39%) infected foreign\u2010born children, a baseline negative tuberculosis test supported a diagnosis of recent infection.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Foreign background, older age and male sex were associated with infection. In a significant proportion of infected children, a previous negative test made recent infection likely.<\/jats:p><\/jats:sec>","DOI":"10.1111\/apa.15194","type":"journal-article","created":{"date-parts":[[2020,1,28]],"date-time":"2020-01-28T22:38:53Z","timestamp":1580251133000},"page":"1854-1859","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Foreign background and older age of children were associated with infection in Swedish tuberculosis contacts"],"prefix":"10.1111","volume":"109","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0105-1865","authenticated-orcid":false,"given":"Rutger","family":"Bennet","sequence":"first","affiliation":[{"name":"Astrid Lindgren Children's Hospital Karolinska University Hospital Stockholm Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sahar","family":"Nejat","sequence":"additional","affiliation":[{"name":"Paediatric Public Health Department Sachs 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