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BACKGROUND: Antidepressants are commonly prescribed. There are clear national guidelines in relation to treatment sequencing. The study examined trends and variation in antidepressant prescribing across English primary care. AIM: To examine trends and variation in antidepressant prescribing in England, with a focus on: monoamine oxidase inhibitors (MAOIs); paroxetine; and dosulepin and trimipramine. DESIGN & SETTIN: g : Retrospective longitudinal study using national and practice level data on antidepressant items prescribed per year (1998-2018) and per month (2010-2019). METHOD: Class- and drug-specific proportions were calculated at national and practice levels. Descriptive statistics were generated, percentile charts and maps were plotted, and conducted logistic regression analysis was conducted. RESULTS: Antidepressant prescriptions more than tripled between 1998 and 2018, from 377 items per 1000 population to 1266 per 1000. MAOI prescribing fell substantially, from 0.7% of all antidepressant items in 1998 to 0.1% in 2018. There was marked variation between practices in past year prescribing of paroxetine (median practice proportion [MPP] = 1.7%, interdecile range [IDR] = 0.7% to 3.3%) and dosulepin (MPP = 0.7%, IDR = 0% to 1.9%), but less for trimipramine (MPP = 0%, IDR = 0% to 0.2%). CONCLUSION: Rapid growth and substantial variation in antidepressant prescribing behaviour was found between practices. The causes could be explored using mixed-methods research. Interventions to reduce prescribing of specific antidepressants, such as dosulepin, could include review prompts, alerts at the time of prescribing, and clinician feedback through tools like OpenPrescribing.net.

Original publication

DOI

10.3399/BJGPO.2021.0020

Type

Journal article

Journal

BJGP Open

Publication Date

13/05/2021

Keywords

antidepressive agents, primary health care, quality of health care