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Editorials

Reducing risk following self-harm: the need for careful prescribing

Carolyn Anne Chew-Graham, Catharine Morgan, Roger T Webb, Angela Emery, Matthew J Carr, Evangelos Kontopantelis, Alison R Yung and Darren M Ashcroft
British Journal of General Practice 2019; 69 (682): 224-225. DOI: https://doi.org/10.3399/bjgp19X702317
Carolyn Anne Chew-Graham
Research Institute, Primary Care and Health Sciences, Keele University, Keele; Midlands Partnership Foundation Trust, Stafford.
Roles: Professor of General Practice Research
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Catharine Morgan
Division of Population Health, Health Services Research and Primary Care, University of Manchester, Manchester; Manchester Academic Health Sciences Centre (MAHSC), Manchester.
Roles: Research Associate
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Roger T Webb
Manchester Academic Health Sciences Centre (MAHSC), Manchester; Centre for Mental Health and Safety, Division of Psychology and Mental Health, University of Manchester; NIHR Greater Manchester Patient Safety Translational Research Centre, Manchester.
Roles: Professor of Mental Health Epidemiology
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Angela Emery
Research Institute, Primary Care and Health Sciences, Keele University, Keele.
Roles: Member of Keele Research User Group
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Matthew J Carr
Manchester Academic Health Sciences Centre (MAHSC), Manchester; Centre for Mental Health and Safety, Division of Psychology and Mental Health, University of Manchester, Manchester.
Roles: Research Fellow
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Evangelos Kontopantelis
Division of Population Health, Health Services Research and Primary Care, University of Manchester, Manchester; Manchester Academic Health Sciences Centre (MAHSC), Manchester.
Roles: Professor in Data Science and Health Services Research
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Alison R Yung
Centre for Mental Health and Safety, Division of Psychology and Mental Health, University of Manchester, Manchester; Centre for Youth Mental Health, University of Melbourne, Parkville, Victoria, Australia.
Roles: Professor of Psychiatry
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Darren M Ashcroft
Manchester Academic Health Sciences Centre (MAHSC), Manchester; NIHR Greater Manchester Patient Safety Translational Research Centre, Manchester; Centre for Pharmacoepidemiology and Drug Safety, Division of Pharmacy and Optometry, University of Manchester, Manchester.
Roles: Professor of Pharmacoepidemiology
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SELF-HARM AS A RISK FACTOR FOR SUICIDE

Self-harm is the strongest risk factor for suicide.1,2 Globally, suicide is the second most common cause of death among 10– to 24-year-olds after road traffic incidents.3 Recent evidence indicates that the incidence of self-harm may be increasing among adolescents.4 Older people who self-harm have an increased suicidal intent,5 and, although repetition rates are low compared with middle-aged adults, self-harm is more often fatal in older adults.6

Tyrell et al 7 identify antidepressants and analgesics as common drugs used by young people for self-poisoning. Overdose as a form of self-harm may be with prescription-only or sales-restricted drugs, often in combination with alcohol.8 Depression is also a key risk factor for suicide.9 Older adults with previously diagnosed comorbid mental and physical health conditions have an increased risk of self-harm.6,10

THE INVERSE CARE LAW

Recent evidence also suggests that the Inverse Care Law,11 whereby quantity or quality of healthcare service provision is inversely associated with the level of healthcare need, operates in the clinical management of self-harm in all age groups. Thus, self-harm incidence is elevated across the life-course in practice populations in deprived areas.4,10,12 Among children and adolescents,4 and adults of working age,13 the incidence of self-harm is highest and the likelihood of referral to specialist services following self-harm is lowest in practices in the most deprived localities. Poisonings show a close relationship with deprivation, with the incidence of poisoning from all substances rising with increasing socioeconomic deprivation.7

PATIENT SAFETY

The National Institute for Health and Care Excellence (NICE) guidance for the long-term management of self-harm (CG133)14 states that: ‘When prescribing drugs for associated mental health conditions to people who self-harm, take into account the toxicity of the prescribed drugs in overdose. ... In particular, do not use tricyclic antidepressants, such as dosulepin, because they are more toxic.’

The clinical importance of this statement is underlined by the fact that it was only one of three (among a total of 57 recommendations in CG133) to be emphasised as a ‘Do Not Do’ recommendation.15

Despite this unequivocal warning, three recent studies in UK primary care patient cohorts, conducted by the same research team, demonstrated a high frequency of tricyclic antidepressant (TCA) prescribing, medication that is known to be potentially fatally toxic in overdose.4,10,13,16 Thus, 6.2% of adolescents (10–19 years),4 9.6% of adults (15–64 years),13 and 11.8% of older adults (≥65 years)10 were prescribed a TCA within 12 months of their index self-harm episode. The proportion of cohort members aged 15–64 years prescribed a TCA did not fall discernibly across the 12-year observation period.13 Therefore, although CG133 was published in November 2011, from 2012–2013 8.8% of cohort study participants still received this highly toxic antidepressant.13 In that study, 70.4% of patients had a diagnosis of depression prior to their first TCA prescription, and 10.4% had a diagnosis of depression recorded on the same day as this prescription was issued.13 It is not known from these studies whether the TCAs were prescribed for depression or pain; although the latter would be unlikely in young people, it would be a possibility in older adults. Whatever the diagnostic label, however, the prescription of TCAs potentially compromises patient safety. In addition, the study reported the rate of opioid prescribing in the year following self-harm was 13.5% in adults of working age.13 Conversely, 10.9% of working age adults who had self-harmed had a psychiatric diagnosis documented, but were not subsequently prescribed medication or referred to specialist services.13 The observed trends for higher likelihood of psychotropic medication prescribing and lower likelihood of referral to specialist services with increasing levels of deprivation provides strong evidence for the Inverse Care Law.11

IMPROVING CARE

Elevated self-harm risk in the first 28 days of starting and stopping antidepressants emphasises the need for careful monitoring of patients during these periods.17 After self-harm in any patient, but particularly in an older adult,10 consideration of referral for psychological therapy or psychiatric opinion, and consideration of alternative medication, with particular avoidance of TCAs, might reduce the risk of escalating self-harm behaviour and associated mortality risk. Clinicians working with more deprived practice populations might particularly be reminded to consider alternative management options to prescribing.

The Safer Prescribing toolkit produced by the National Confidential Inquiry into Suicide and Safety in Mental Health18 highlights 3 points relevant to patient safety following self-harm:

  1. encourage the safer prescribing of opioids;

  2. ensure that there is a service in place for people with complex depression; and

  3. be alert to people with markers of risk such as frequent consultation, multiple psychotropic medication, and specific drug combinations.

The toolkit suggests that GPs should be aware of the dangers associated with the prescribing of TCAs.18

MANAGING PEOPLE FOLLOWING SELF-HARM

Self-harm is a complex and often ingrained behaviour.14 People who have harmed themselves may be fearful of disclosing their behaviour due to stigma and shame (IM Troya et al, unpublished data, 2019). The clinician should show empathy for, and understanding of, the patient who has self-harmed, offering support and exploring the needs and expectations of the individual. This should include an exploration of mood, social factors, and risk of self-harm repetition, as well as consideration of the physical consequences of self-harm and injury.18 Consideration of referral for further care is also needed, particularly in more deprived areas, and has the potential to reduce the inequality of access to care for people who have harmed themselves.10,13 In addition, recognition of the role of third-sector services in supporting people who self-harm is crucial and may plug the gap in service provision in more deprived areas (IM Troya et al, unpublished data, 2019).

Also vital is the need to prescribe carefully, particularly avoiding the use of TCAs, which can be lethal in overdose.16 While this is a clear ‘Do Not Do’ NICE recommendation,15 it is of concern that it is not being effectively implemented in practice. A simple alert on the primary care computer system would go a long way to reminding prescribers about the NICE ‘Do Not Do’ recommendation and the dangers of TCAs in people who have one or more self-harm episodes recorded in their notes.

The authors hope that this Editorial will highlight this patient safety concern and stark example of the Inverse Care Law, and draw attention to current recommendations for the management of people who have harmed themselves.

Notes

Provenance

Commissioned; not externally peer reviewed.

Competing interests

Carolyn Anne Chew-Graham, Catharine Morgan, Roger T Webb, Matthew J Carr, Evangelos Kontopantelis, and Darren M Ashcroft are co-authors of a number of papers cited in this manuscript. Angela Emery and Alison R Yung have declared no competing interests.

Footnotes

  • Further information

    http://www.connectingwithpeople.org.

  • © British Journal of General Practice 2019

REFERENCES

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    (2014) Preventing suicide: a global imperative, http://www.who.int/mental_health/suicide-prevention/world_report_2014/en/ (accessed 9 Apr 2019).
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    1. Cooper J,
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    (2005) Suicide after deliberate self-harm: a 4-year cohort study. Am J Psychiatry 162(2):297–303.
    OpenUrlCrossRefPubMed
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    (2009) Global patterns of mortality in young people: a systematic analysis of population health data. Lancet 374(9693):881–892.
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    (2011) First episode of self-harm in older age: a report from the 10-year prospective Manchester Self-Harm project. J Clin Psychiatry 72(6):737–743.
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    1. Hawton K,
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    (2008) How often does deliberate self-harm occur relative to each suicide? A study of variations by gender and age. Suicide Life Threat Behav 38(6):650–660.
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    1. Tyrell EG,
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    (2018) Br J Gen Pract, Poisoning substances taken by young people: a population-based cohort study. DOI: https://doi.org/10.3399/bjgp18X698897.
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    (2018) Self-harm in a primary care cohort of older people: incidence, clinical management, and risk of suicide and other causes of death. Lancet Psychiatry 5(11):905–912.
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    1. Hart JT
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    1. Carr MJ,
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    (2016) The epidemiology of self-harm in a UK-wide primary care patient cohort, 2001–2013. BMC Psychiatry 16:53.
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    (2016) Clinical management following self-harm in a UK-wide primary care cohort. J Affect Disord 197:182–188.
    OpenUrl
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    1. National Institute for Health and Care Excellence (NICE)
    Self-harm in over 8s: longer term management CG133, https://www.nice.org.uk/guidance/cg133 (accessed 9 Apr 2019).
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    1. National Institute for Health and Care Excellence.
    Do Not Do Recommendation, https://www.nice.org.uk/media/default/sharedlearning/716_716donotdobookletfinal.pdf (accessed 9 Apr 2019).
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British Journal of General Practice: 69 (682)
British Journal of General Practice
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Reducing risk following self-harm: the need for careful prescribing
Carolyn Anne Chew-Graham, Catharine Morgan, Roger T Webb, Angela Emery, Matthew J Carr, Evangelos Kontopantelis, Alison R Yung, Darren M Ashcroft
British Journal of General Practice 2019; 69 (682): 224-225. DOI: 10.3399/bjgp19X702317

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Reducing risk following self-harm: the need for careful prescribing
Carolyn Anne Chew-Graham, Catharine Morgan, Roger T Webb, Angela Emery, Matthew J Carr, Evangelos Kontopantelis, Alison R Yung, Darren M Ashcroft
British Journal of General Practice 2019; 69 (682): 224-225. DOI: 10.3399/bjgp19X702317
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    • SELF-HARM AS A RISK FACTOR FOR SUICIDE
    • THE INVERSE CARE LAW
    • PATIENT SAFETY
    • IMPROVING CARE
    • MANAGING PEOPLE FOLLOWING SELF-HARM
    • Notes
    • Footnotes
    • REFERENCES
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  • Time to reshape our delivery of primary care to vulnerable older adults in social housing?
  • General practice in the years ahead: relationships will matter more than ever
  • Vitamin D and COVID-19 in older age: evidence versus expectations
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