{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T23:15:30Z","timestamp":1793142930732,"version":"4.5.0"},"reference-count":40,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T00:00:00Z","timestamp":1756857600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012264","name":"NIH","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100012264","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100024786","name":"FIOCRUZ","doi-asserted-by":"publisher","award":["U01-AI069923"],"award-info":[{"award-number":["U01-AI069923"]}],"id":[{"id":"10.13039\/501100024786","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Departamento de Ci\u00eancia e Tecnologia"},{"name":"Secretaria de Ci\u00eancia e Tecnologia"},{"DOI":"10.13039\/501100006506","name":"Minist\u00e9rio da Sa\u00fade","doi-asserted-by":"crossref","award":["25029.000507\/2013\u201307"],"award-info":[{"award-number":["25029.000507\/2013\u201307"]}],"id":[{"id":"10.13039\/501100006506","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Consejo Nacional de Ciencia"},{"name":"Tecnolog\u00eda e Innovaci\u00f3n Tecnol\u00f3gica"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,2,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Approximately 95% of people infected with Mycobacterium tuberculosis do not progress to tuberculosis (TB) disease. Identifying key determinants of TB progression could focus prevention efforts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Contacts of pulmonary TB patients were enrolled in a prospective multi-center cohort study (Regional Prospective Observational Research in Tuberculosis [RePORT]-Brazil) from 2015 to 2019 and followed for 24 months. Empirical review and least absolute shrinkage and selection operator (LASSO) regression, using baseline clinical and laboratory information, were used as dimension reduction techniques to determine factors for inclusion in prediction models. Models were created for: (1) all contacts, (2) contacts interferon-gamma release assay (IGRA)-positive at baseline, and (3) IGRA-positive contacts who did not receive TB preventive therapy (TPT; &amp;lt;30 days isoniazid). Internal validation was performed using bootstrapping.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among 1846 contacts of 619 TB index patients, 25 (1.4%) progressed to TB. No TPT was a risk factor for progression to TB among all contacts (mixed-effects adjusted hazard ratio [aHR] = 16.55, 95% confidence interval [CI]: 2.22\u2013124.45). Internal validation with all contacts yielded an area under the receiver operating characteristic curve of 0.80 (95% CI: .72\u2013.86]. Body mass index (BMI) was inversely associated with increased risk of progressing to active TB among IGRA-positive contacts who did not receive TPT (aHR = 0.89, 95% CI: .80\u2013.99). Interferon-gamma release assay\u2013positive contacts with BMI &amp;lt;25\u2005kg\/m2 had a 4.14-fold (95% CI: 1.17\u201314.67) higher risk of progression to TB than IGRA-positive contacts with BMI \u226525\u2005kg\/m2: 8.4% versus 2.1%, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Body mass index &amp;lt;25\u2005kg\/m2, a readily available biomarker, identified IGRA-positive close TB contacts at high risk of progressing to TB disease. Prioritizing this high-risk group for TB preventive therapy could improve TB prevention efforts. BMI &amp;lt;25\u2005kg\/m\u00b2, a readily available biomarker, identified IGRA-positive close contacts at high risk for progression to TB in a large observational Brazilian cohort. Prioritizing this high-risk group for TB preventive therapy could significantly improve TB prevention efforts.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/cid\/ciaf475","type":"journal-article","created":{"date-parts":[[2025,9,2]],"date-time":"2025-09-02T11:46:35Z","timestamp":1756813595000},"page":"e100-e109","source":"Crossref","is-referenced-by-count":3,"title":["Body Mass Index and Incident Tuberculosis in Close Tuberculosis Contacts"],"prefix":"10.1093","volume":"82","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6883-8422","authenticated-orcid":false,"given":"Mar\u00eda B","family":"Arriaga","sequence":"first","affiliation":[{"name":"Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine , Nashville, Tennessee ,","place":["USA"]},{"name":"Funda\u00e7\u00e3o Jos\u00e9 Silveira, Centro de Pesquisa, Aprendizagem e Inova\u00e7\u00e3o , Salvador, Bahia 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