{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T06:16:51Z","timestamp":1781590611776,"version":"3.54.5"},"reference-count":52,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,6]]},"abstract":"<jats:sec>\n            <jats:title>Objectives:<\/jats:title>\n            <jats:p>This study aims to evaluate patient characteristics associated with bronchodilator (BD) use at various stages of bronchiolitis illness and evaluate corresponding patient outcomes in the emergency department (ED).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods:<\/jats:title>\n            <jats:p>This retrospective, cross-sectional study involves secondary data analysis from a sample of 932 children ages 3 to 24 months who received a diagnosis of bronchiolitis during an ED visit (1057 cases). Predictor variables included demographics, past medical history, family history, physical findings, medication use, and disposition. Outcomes included BD use for bronchiolitis symptoms in the pre-ED and ED settings, and associated care outcomes in the ED. Predictors of BD use in the ED with statistical significance were incorporated in a predictive multivariable logistic regression model with a training-validation split of 70% to 30%.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results:<\/jats:title>\n            <jats:p>Children with prior BD use were significantly more likely than children without such history to receive BD treatment during their current bronchiolitis illness before the ED [odds ratio (OR): 23.7, 95% CI: 14.4-39], in the ED (OR: 2.6, 95% CI: 1.76-3.77), and as a prescription upon discharge from the ED (OR: 3.7, 95% CI: 2.49-5.58). In multivariable regression analyses, older age, parental asthma history, and wheezes and retractions on ED physical examination were significantly associated with BD use in the ED (<jats:italic toggle=\"yes\">P<\/jats:italic>&lt;0.05). The area under the curve for the validation model with these variables was 0.826 (95% CI: 0.794-0.858).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions:<\/jats:title>\n            <jats:p>Prior BD use was associated with subsequent use during the current illness, during ED care, and subsequent prescription, forming a cyclical pattern. A perceived bronchospastic phenotype of bronchiolitis may influence clinical practice in ED settings.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1097\/pec.0000000000003360","type":"journal-article","created":{"date-parts":[[2025,2,28]],"date-time":"2025-02-28T05:01:27Z","timestamp":1740718887000},"page":"448-455","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":2,"title":["Drivers of Bronchodilator Use in Bronchiolitis"],"prefix":"10.1097","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8423-3981","authenticated-orcid":false,"given":"Andrea","family":"Rivera-Sepulveda","sequence":"first","affiliation":[{"name":"Department of Pediatrics, Division of Emergency Medicine and Urgent Care, Nemours Children\u2019s Health"},{"name":"College of Medicine, University of Central Florida, Orlando"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy","family":"Maul","sequence":"additional","affiliation":[{"name":"Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA"},{"name":"Department of Cardiac Surgery, Nemours Children\u2019s Hospital, Orlando, FL"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna","family":"Jurlina","sequence":"additional","affiliation":[{"name":"College of Medicine, University of Central Florida, Orlando"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathryn V.","family":"Blake","sequence":"additional","affiliation":[{"name":"Center for Pharmacogenomics and Translational Research, Nemours Children\u2019s Health, Jacksonville, FL"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew M.","family":"Davis","sequence":"additional","affiliation":[{"name":"Nemours Children\u2019s Health, Wilmington, 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