Why the study?
Do beta-blockers increase the risk of psychiatric side-effects in new users compared to unexposed individuals?
Do beta-blockers increase the risk of psychiatric side-effects in new users compared to unexposed individuals?
The observed association between beta-blocker use and psychiatric side-effects in a large database is likely heavily influenced by confounding by indication and unmeasured variables.
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Observed association in new beta-blocker users warrants interpretive caution; leaves open causal psychiatric effects pending adjusted studies.
Isacson et al. (1995) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: