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Each participant was linked to administrative databases using a unique personal health number or their first name, last name, sex, and date of birth.<\/jats:p><\/jats:sec><jats:sec><jats:title>Principal Findings<\/jats:title><jats:p>The sensitivity of self\u2010report for ambulatory care visits, <jats:styled-content style=\"fixed-case\">ED<\/jats:styled-content> encounters, and overnight hospitalizations was 89, 80, and 73 percent, respectively; specificity was 37, 83, and 91 percent. The mean difference between self\u2010reported and documented number of encounters in the past 12\u00a0months was +1.6 for ambulatory care visits (95 percent <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>\u00a0=\u00a00.4, 2.8), \u22120.6 for <jats:styled-content style=\"fixed-case\">ED<\/jats:styled-content> encounters (95 percent <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>\u00a0=\u00a0\u22120.8, \u22120.4), and 0.0 for hospitalizations (95 percent <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>\u00a0=\u00a00.0, 0.1).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Adults experiencing homelessness are quite accurate reporters of their use of health care, especially for <jats:styled-content style=\"fixed-case\">ED<\/jats:styled-content> encounters and hospitalizations.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1475-6773.12329","type":"journal-article","created":{"date-parts":[[2015,6,27]],"date-time":"2015-06-27T03:52:15Z","timestamp":1435377135000},"page":"282-301","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":42,"title":["Accuracy of Self\u2010Reported Health Care Use in a Population\u2010Based Sample of Homeless Adults"],"prefix":"10.1111","volume":"51","author":[{"given":"Stephen W.","family":"Hwang","sequence":"first","affiliation":[{"name":"Centre for Research on Inner City Health Li Ka Shing Knowledge Institute of St. Michael's Hospital Toronto ON Canada"},{"name":"Division of General Internal Medicine Department of Medicine University of Toronto Toronto ON Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Catharine","family":"Chambers","sequence":"additional","affiliation":[{"name":"Centre for Research on Inner City Health Li Ka Shing Knowledge Institute of St. Michael's Hospital Toronto ON Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marko","family":"Katic","sequence":"additional","affiliation":[{"name":"Department of Research Design and Biostatistics Sunnybrook Health Sciences Centre Toronto ON Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,6,26]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1177\/1077558705285298"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.1995.03530040033037"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1177\/070674370705201207"},{"key":"e_1_2_7_5_1","volume-title":"Homelessness: Programs and the People They Serve. 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