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Publication Detail
Prognostic factors of carbon monoxide poisoning in Taiwan: a retrospective observational study.
Abstract
OBJECTIVES: To identify the risk factors related to the prognosis of carbon monoxide (CO)-poisoned patients in the hospital. DESIGN: Retrospective observational study. SETTING: Tri-Service General Hospital, Taiwan. METHODS: We conducted a review of the medical records of 669 CO-poisoned patients, who were admitted to the Department of Emergency, Tri-Service General Hospital, Taiwan, from 2009 to 2014. Demographic, clinical and laboratory data were collected for analysis. In the study, the end points for poor outcome were patients who either still had sequelae, were bedridden or died after treatment. The independent t-test, χ2 test and binary logistic regression were used to identify the association between the prognostic factors and the outcomes. RESULTS: The logistic regression analysis confirmed that the Glasgow Coma Scale (GCS) score (p=0.008) and blood urea nitrogen (BUN) (p=0.002) were related to poor outcomes. Furthermore, the receiver operating characteristic (ROC) curve showed that the cut-off point of intubation days was 1.5 days (area under the ROC curve [AUC]=0.793) for all patients and 2.5 days (AUC=0.817) for patients with intubation when predicting poor outcomes. CONCLUSION: We identified the factors that most strongly predict the prognosis of CO poisoning, including the GCS score, serum BUN and intubation days. Moreover, the number of hyperbaric oxygen treatments seems to have impact of the outcome.
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