Antidepressant adverse events cohort
In 238,963 adults aged 20–64 with depression, most used antidepressants and several common agents associated with higher fall rates versus non-use.
Source
Antidepressant use and risk of adverse outcomes in people aged 20-64 years: cohort study using a primary care database
Study at a glance
- Design
- Cohort — UK primary-care database; newly diagnosed depression followed for adverse events
- N
- N=238963 · Final eligible cohort; 87.7% received antidepressants during follow-up
- Population
- Adults aged 20–64 with newly diagnosed depression in UK primary care
- Outcome
- Adverse outcomes (including falls) by antidepressant class/drug vs non-use
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Antidepressant adverse events cohort
These passages occur verbatim in the stored paper text. They support the points listed below; they do not verify every statement in the explanation.
Final cohort 238,963 patients.
This left 238,963 eligible patients in the final study cohort (Fig. ).
209,476 (87.7%) treated with antidepressants during follow-up.
The majority of patients in the cohort (209,476, 87.7%) were treated with antidepressants during follow-up.
What they did
UK primary-care database cohort followed eligible newly diagnosed depression patients for adverse outcomes across antidepressant classes and individual drugs.
What they found
87.7% received antidepressants; citalopram, fluoxetine, and amitriptyline were most prescribed; 8 of 11 common drugs linked to significantly higher falls vs non-use over 5 years.
The limits
What it doesn't show
Observational signals can reflect confounding by indication; absolute risks and benefits still need joint clinical judgment.
Key terms
- SSRI
- Selective serotonin reuptake inhibitor antidepressant class.
- Confounding by indication
- Sicker patients preferentially receive certain drugs, biasing associations.
- Primary-care database
- Electronic health records used to build the cohort.
- Falls
- Adverse outcome elevated for several antidepressants vs non-use.
- aHR
- Adjusted hazard ratio comparing treatment groups.
- Working-age adults
- Cohort aged 20–64 years at depression diagnosis.
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Final N?
Common questions
Final cohort size?
238,963 eligible patients.
Treated proportion?
87.7% received antidepressants in follow-up.
Top drugs?
Citalopram, fluoxetine, amitriptyline.
Falls finding?
8/11 common antidepressants associated with higher fall rates vs non-use.
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