Self-poisoning in Auckland reconsidered

Area of Science:

• Psychiatry
• Public Health
• Clinical Toxicology

Background:

• Self-poisoning is a significant public health concern.
• Understanding patient demographics and substance involvement is crucial for prevention strategies.

Purpose of the Study:

• To analyze the characteristics of self-poisoning patients presenting to Auckland Hospital.
• To investigate the role of specific medications, particularly benzodiazepines, in self-poisoning incidents.
• To evaluate the potential impact of restricting oral benzodiazepine prescriptions on self-poisoning incidence.

Main Methods:

• Retrospective analysis of 345 self-poisoning patients in the accident and emergency department.
• Review of 211 patients referred to the psychiatric liaison service.
• Examination of demographic data, implicated substances, and psychiatric diagnoses.

Main Results:

• A preponderance of young females was observed in both patient groups.
• Referral rates correlated with increasing age and the involvement of antidepressants, neuroleptics, and anticonvulsants.
• Benzodiazepines were implicated in 40% of incidents; serious psychiatric disorders were present in only 20% of referred patients.
• Personality disorder, depressive neurosis, and transient situational disturbance constituted 80% of diagnoses.

Conclusions:

• The study highlights the significant role of benzodiazepines in self-poisoning incidents.
• Restricting oral benzodiazepine prescriptions by Auckland doctors could potentially reduce self-poisoning incidence by 33-50%.
• Further research into alternative anxiolytic treatments and mental health support is warranted.