Rose Cairns1,2, Jared A Brown1,3, Claire E Wylie2, Andrew H Dawson1,4, Geoffrey K Isbister5,6, Nicholas A Buckley1,2. 1. NSW Poisons Information Centre, Children's Hospital at Westmead, Sydney, NSW. 2. University of Sydney, Sydney, NSW. 3. Centre for Big Data Research in Health, University of New South Wales, Sydney, NSW. 4. Royal Prince Alfred Hospital, Sydney, NSW. 5. University of Newcastle, Newcastle, NSW. 6. Calvary Mater Newcastle, Newcastle, NSW.
Abstract
OBJECTIVES: To assess the numbers of paracetamol overdose-related hospital admissions and deaths in Australia since 2007-08, and the overdose size of intentional paracetamol overdoses since 2004. DESIGN, SETTING: Retrospective analysis of data on paracetamol-related exposures, hospital admissions, and deaths from the Australian Institute of Health and Welfare National Hospital Morbidity Database (NHMD; 2007-08 to 2016-17), the New South Wales Poisons Information Centre (NSWPIC; 2004-2017), and the National Coronial Information System (NCIS; 2007-08 to 2016-17). PARTICIPANTS: People who took overdoses of paracetamol in single ingredient preparations. MAIN OUTCOME MEASURES: Annual numbers of reported paracetamol-related poisonings, hospital admissions, and deaths; number of tablets taken in overdoses. RESULTS: The NHMD included 95 668 admissions with paracetamol poisoning diagnoses (2007-08 to 2016-17); the annual number of cases increased by 44.3% during the study period (3.8% per year; 95% CI, 3.2-4.6%). Toxic liver disease was documented for 1816 of these patients; the annual number increased by 108% during the study period (7.7% per year; 95% CI, 6.0-9.5%). The NSWPIC database included 22 997 reports of intentional overdose with paracetamol (2004-2017); the annual number increased by 77.0% during the study period (3.3% per year; 95% CI, 2.5-4.2%). The median number of tablets taken increased from 15 (IQR, 10-24) in 2004 to 20 (IQR, 10-35) in 2017. Modified release paracetamol ingestion report numbers increased 38% between 2004 and 2017 (95% CI, 30-47%). 126 in-hospital deaths were recorded in the NHMD, and 205 deaths (in-hospital and out of hospital) in the NCIS, with no temporal trends. CONCLUSIONS: The frequency of paracetamol overdose-related hospital admissions has increased in Australia since 2004, and the rise is associated with greater numbers of liver injury diagnoses. Overdose size and the proportion of overdoses involving modified release paracetamol have each also increased.
OBJECTIVES: To assess the numbers of paracetamoloverdose-related hospital admissions and deaths in Australia since 2007-08, and the overdose size of intentional paracetamoloverdoses since 2004. DESIGN, SETTING: Retrospective analysis of data on paracetamol-related exposures, hospital admissions, and deaths from the Australian Institute of Health and Welfare National Hospital Morbidity Database (NHMD; 2007-08 to 2016-17), the New South Wales Poisons Information Centre (NSWPIC; 2004-2017), and the National Coronial Information System (NCIS; 2007-08 to 2016-17). PARTICIPANTS: People who took overdoses of paracetamol in single ingredient preparations. MAIN OUTCOME MEASURES: Annual numbers of reported paracetamol-related poisonings, hospital admissions, and deaths; number of tablets taken in overdoses. RESULTS: The NHMD included 95 668 admissions with paracetamolpoisoning diagnoses (2007-08 to 2016-17); the annual number of cases increased by 44.3% during the study period (3.8% per year; 95% CI, 3.2-4.6%). Toxic liver disease was documented for 1816 of these patients; the annual number increased by 108% during the study period (7.7% per year; 95% CI, 6.0-9.5%). The NSWPIC database included 22 997 reports of intentional overdose with paracetamol (2004-2017); the annual number increased by 77.0% during the study period (3.3% per year; 95% CI, 2.5-4.2%). The median number of tablets taken increased from 15 (IQR, 10-24) in 2004 to 20 (IQR, 10-35) in 2017. Modified release paracetamol ingestion report numbers increased 38% between 2004 and 2017 (95% CI, 30-47%). 126 in-hospital deaths were recorded in the NHMD, and 205 deaths (in-hospital and out of hospital) in the NCIS, with no temporal trends. CONCLUSIONS: The frequency of paracetamoloverdose-related hospital admissions has increased in Australia since 2004, and the rise is associated with greater numbers of liver injury diagnoses. Overdose size and the proportion of overdoses involving modified release paracetamol have each also increased.
Keywords:
Analgesics; Chemical and drug induced liver injury; Injuries; Liver diseases, chemical and drug induced; Poison control centers; Poisoning; Self-Injurious behavior; Suicide; Toxicology
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