Title
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Using risk adjustment to improve the interpretation of global inpatient pediatric antibiotic prescribing
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Author
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Abstract
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Objectives Assessment of regional pediatric last-resort antibiotic utilization patterns is hampered by potential confounding from population differences. We developed a risk-adjustment model from readily available, internationally used survey data and a simple patient classification to aid such comparisons. Design We investigated the association between pediatric conserve antibiotic (pCA) exposure and patient / treatment characteristics derived from global point prevalence surveys of antibiotic prescribing, and developed a risk-adjustment model using multivariable logistic regression. The performance of a simple patient classification of groups with different expected pCA exposure levels was compared to the risk model. Setting 226 centers in 41 countries across 5 continents. Participants Neonatal and pediatric inpatient antibiotic prescriptions for sepsis/bloodstream infection for 1281 patients. Results Overall pCA exposure was high (35%), strongly associated with each variable (patient age, ward, underlying disease, community acquisition or nosocomial infection and empiric or targeted treatment), and all were included in the final risk-adjustment model. The model demonstrated good discrimination (c-statistic = 0.83) and calibration (p = 0.38). The simple classification model demonstrated similar discrimination and calibration to the risk model. The crude regional pCA exposure rates ranged from 10.3% (Africa) to 67.4% (Latin America). Risk adjustment substantially reduced the regional variation, the adjusted rates ranging from 17.1% (Africa) to 42.8% (Latin America). Conclusions Greater comparability of pCA exposure rates can be achieved by using a few easily collected variables to produce risk-adjusted rates. |
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Language
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English
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Source (journal)
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PLoS ONE
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Publication
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2018
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ISSN
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1932-6203
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DOI
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10.1371/JOURNAL.PONE.0199878
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Volume/pages
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13
:7
(2018)
, 14 p.
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Article Reference
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e0199878
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ISI
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000437809500038
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Pubmed ID
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29979795
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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