Hardoon, Sarah;
Hayes, Joseph;
Viding, Essi;
McCrory, Eamon;
Walters, Kate;
Osborn, David;
(2022)
Prescribing of antipsychotics among people with recorded personality disorder in primary care: a retrospective nationwide cohort study using The Health Improvement Network primary care database.
BMJ Open
, 12
(3)
, Article e053943. 10.1136/bmjopen-2021-053943.
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Abstract
Objectives: To investigate the extent of antipsychotic prescribing to people with recorded personality disorder (PD) in UK primary care and factors associated with such prescribing. // Design: Retrospective cohort study. // Setting: General practices contributing to The Health Improvement Network UK-wide primary care database, 1 January 2000–31 December 2016. // Participants: 46 210 people registered with participating general practices who had a record of PD in their general practice notes. 1358 (2.9%) people with missing deprivation information were excluded from regression analyses; no other missing data. // Main outcome measures: Prescriptions for antipsychotics in general practice records and length of time in receipt of antipsychotic prescriptions. // Results: Of 46 210 people with recorded PD, 15 562 (34%) were ever prescribed antipsychotics. Among the subgroup of 36 875 people with recorded PD, but no recorded severe mental illness (SMI), 9208 (25%) were prescribed antipsychotics; prescribing was lower in less deprived areas (adjusted rate ratio (aRR) comparing least to most deprived quintile: 0.56, 95% CI 0.48 to 0.66, p<0.001), was higher in females (aRR:1.25, 95% CI 1.16 to 1.34, p<0.001) and with a history of adverse childhood experiences (aRR:1.44, 95% CI 1.28 to 1.56, p<0.001). Median time prescribed antipsychotics was 605 days (IQR 197–1639 days). Prescribing frequency has increased over time. // Conclusions: Contrary to current UK guidelines, antipsychotics are frequently and increasingly prescribed for extended periods to people with recorded PD, but with no history of SMI. An urgent review of clinical practice is warranted, including the effectiveness of such prescribing and the need to monitor for adverse effects, including metabolic complications.
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