Impact of different pack sizes of paracetamol in the United Kingdom and Ireland on intentional overdoses: a comparative study
2011

Impact of Paracetamol Pack Sizes on Overdoses in the UK and Ireland

Sample size: 8367 publication 10 minutes Evidence: moderate

Author Information

Author(s): Hawton Keith, Bergen Helen, Simkin Sue, Arensman Ella, Corcoran Paul, Cooper Jayne, Waters Keith, Gunnell David, Kapur Navneet

Primary Institution: Centre for Suicide Research, Department of Psychiatry, University of Oxford

Hypothesis

Does the difference in paracetamol pack size legislation between the UK and Ireland affect the size of overdoses?

Conclusion

The difference in paracetamol pack size legislation between England and Ireland does not appear to have resulted in a major difference in sizes of overdoses.

Supporting Evidence

  • The study analyzed data from 2002 to 2007.
  • In Ireland, more pack equivalents were used in overdoses compared to England.
  • The median number of tablets consumed did not differ significantly between the two countries.

Takeaway

This study looked at how the size of paracetamol packs sold in stores affects how much people take when they overdose. It found that even with smaller packs in Ireland, people still took more tablets than in England.

Methodology

Data on non-fatal self-harm presentations from hospitals in England and Ireland were analyzed to compare paracetamol overdose sizes.

Potential Biases

Data on the number of tablets taken relied on patient self-report, which can be inaccurate.

Limitations

The English sample was based on six hospitals, which may not be representative of all hospitals in England.

Participant Demographics

The study included individuals aged 10 years or more, with a gender ratio of 1.8:1 in England and 2.1:1 in Ireland.

Statistical Information

P-Value

0.003

Confidence Interval

95% CI 2.57-2.69

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2458-11-460

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