Impact of a Caffeine Restriction Policy on Inpatients With Schizophrenia: A Pre-Post Comparison Using Electronic...

Area of Science:

• Psychiatry
• Clinical Psychology
• Neuroscience

Background:

• Caffeine is a widely consumed psychostimulant.
• High caffeine intake may exacerbate psychotic symptoms by increasing dopamine neurotransmission.
• Patients with schizophrenia often consume more caffeine than the general population.

Purpose of the Study:

• To evaluate the effect of a caffeine restriction policy in a psychiatric hospital.
• To assess impacts on patient psychopathology, hospitalization characteristics, and psychotropic medication use.
• To determine the feasibility of caffeine limitation in inpatient psychiatric settings.

Main Methods:

• Retrospective cross-sectional study comparing two periods: pre- and post-caffeine restriction.
• Data collected from electronic health records of adult inpatients with schizophrenia or schizoaffective disorder.
• Analysis included Global Assessment of Functioning (GAF) scores, length of stay, antipsychotic, and benzodiazepine use.

Main Results:

• Reduced caffeine availability was significantly associated with higher GAF scores at discharge (aOR = 2.86).
• Shorter hospital stays were observed following caffeine restriction (aOR = 0.68).
• No significant association was found with changes in antipsychotic or benzodiazepine dosage.

Conclusions:

• Limiting caffeine access in psychiatric hospitals is a practical and cost-effective intervention.
• This policy shows promise for improving outcomes in patients with schizophrenia.
• The intervention should be considered for broader implementation in psychiatric care.