NZ Government's trend analysis of hospitalised self‐harm is misleading

Langley, John Desmond; Cryer, Colin; Davie, Gabrielle

doi:10.1111/j.1753-6405.2008.00194.x

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Reliable and readily available indicators for incidence of paracetamol poisoning are important. Trends based on health‐care utilisation may be unreliable . However, both hospital discharge data and PC calls correlated well with, but underestimated, the trend in incidence.…”

Section: Discussionmentioning

confidence: 96%

Increased availability of paracetamol in Sweden and incidence of paracetamol poisoning: using laboratory data to increase validity of a population‐based registry study

Gedeborg

Svennblad

Holm

et al. 2017

Pharmacoepidemiology and Drug

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The incidence of paracetamol poisoning in Sweden has increased since 2009, contrasting the decreased incidence in the period of 2007-2009. The change in trend was temporally associated with the introduction of availability of paracetamol from non-pharmacy outlets but did not appear to be related to sales volume of paracetamol or general trends in self-harm or suicides. © 2017 Commonwealth of Australia. Pharmacoepidemiology and Drug Safety © 2017 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 96%

Increased availability of paracetamol in Sweden and incidence of paracetamol poisoning: using laboratory data to increase validity of a population‐based registry study

Gedeborg

Svennblad

Holm

et al. 2017

Pharmacoepidemiology and Drug

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“…It is recognized by the Ministry of Health that there is a difficulty with the collection of official data on intentional self-harm. Langley et al have criticized the analysis of trends in the official figures by examining secondary data and different definitions of intentional self-harm [15]. The current study is the first that has used direct observation of admissions for self-harm in a large proportion of the New Zealand population to provide accurate data on the size of the problem.…”

Section: Discussionmentioning

confidence: 99%

Epidemiology of Intentional Self-Harm Presenting to Four District Health Boards in New Zealand Over 12 Months, and Comparison with Official Data

Hatcher

Sharon

Collins

2009

Aust N Z J Psychiatry

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Considerably more people present to hospital with intentional self-harm in New Zealand than are recorded by official figures. This is important because reducing self-harm is a key part of the New Zealand health strategy. To achieve this, accurate measurement of self-harm rates is required. Encouraging improved reporting by DHBs is unlikely to work. It is suggested that dedicated monitoring sites be set up in representative DHBs to solve the problem of flawed official data collection.

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“…Admissions with 1 day or less in hospital were excluded in order to remove overnight observational stays from the study population. The rationale was to exclude minor injury cases that are subject to variability in admission criteria and service utilisation 18 19. Another 44 records were excluded because they did not contain a valid entry indicating county of residence.…”

Section: Methodsmentioning

confidence: 99%