Comorbidities and Psychotic Illness: Part 1 - Philosophy and Clinical Consequences
Comorbidities and Psychotic Illness: Part 1 - Philosophy and Clinical Consequences
A conceptual discussion of psychiatric comorbidity, shared biological factors and implications for classification and risk.
About this publication
This is an original, plain-language summary based on the abstract and bibliographic record on Hrcak. It is not a reproduction of the article or a full-text review.
This paper asks what it means to describe two psychiatric conditions as comorbid. It considers whether the idea of two independent illnesses occurring together adequately captures the relationship between conditions such as schizophrenia and bipolar disorder.
Approach
The authors discuss the definition of comorbidity and propose that shared genetic influences can link psychiatric conditions. Their discussion includes genetic variants involved in neurotransmitter metabolism and neurotrophic factors.
Main points
The paper argues that some co-occurring psychiatric conditions may be biologically connected rather than entirely independent. It explores what that perspective could mean for descriptions of illness, diagnostic classification and risk profiles.
Important limitations
This is a conceptual discussion, not a genetic association study or a validated risk-prediction tool. The abstract does not establish that shared genes explain every instance of psychiatric comorbidity. The authors' proposed framework should not be treated as a complete account of causation or used to infer an individual's diagnosis or risk.
This summary is for academic information and is not personal medical advice.
Citation and original source
Agius M, Falzon Aquilina F. Comorbidities and psychotic illness. Part 1: Philosophy and clinical consequences. Psychiatria Danubina. 2014;26(Suppl 1):246-249.
Source reviewed: 6 November 2026.