Abstract
IntroductionPoison exposure is a significant problem in emergency departments (EDs) with high admission rates. Our study aims were to describe the demographics, exposure patterns and clinical outcomes of our ED patients as well as to explore predictors of Intensive Care Unit (ICU) / High Dependency (HD) admission.MethodsIn this retrospective study, we recruited patients aged over 16 years who presented with poison exposure to our ED over one year. We collected demographical and clinical data using our hospital databases. Primary outcomes were mortality rate and disposition status. Secondary outcomes were predictors for ICU/HD admission. Logistic regression was applied to identify these predictors.ResultsWe recruited 615 patients from an ED attendance of 162,159. Four hundred and nineteen (68%) patients were females; the majority [410 (66.7%)] was Chinese. The median age was 33 years [interquartile range (IQR): 24‐44]. Four hundred fifty‐six (74.1%) and 159 (25.9%) exposures were intentional or accidental respectively. There were no mortalities. The majority [466 (75.8%)] was admitted to the general ward and only 24 (3.9%) cases were ICU/HD admissions. We identified four factors associated with ICU/HD admission. Odds ratios (95% confidence intervals) for hypotension (systolic blood pressure <90 mmHg), pupillary changes, previous psychiatric history and tricyclic antidepressant overdose were 19.7 (5.57‐69.65), 31.9 (7.01‐145.76), 3.1 (1.08‐9.07) and 30.1 (9.40‐96.52) respectively.ConclusionsPoison exposure is an infrequent ED occurrence with high admission rates but low mortality. Our study identified risk factors for ICU/HD admission that could be used in future studies to triage at‐risk patients for treatment escalation.
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