Which condition is least commonly comorbid with mood disorders?

Which condition is least commonly comorbid with mood disorders?

• A. Schizophrenia
• B. Anxiety disorders
• C. Sleep apnea
• D. Personality disorders

Answer: (A)

Understanding comorbidity patterns with mood disorders shows that anxiety disorders and personality disorders frequently occur alongside mood episodes, reflecting shared vulnerabilities and overlapping symptoms. Sleep disturbances like sleep apnea also commonly appear in people with mood disorders, often worsening depressive or bipolar symptoms and sharing risk factors such as obesity and disrupted sleep. Schizophrenia, while it can feature mood symptoms, is a distinct psychotic disorder and does not typically co-occur with mood disorders at the same rate as the others; when mood symptoms are prominent with psychosis, the diagnosis of schizoaffective disorder is considered instead. So, the condition least likely to be comorbid with mood disorders is schizophrenia.

Understanding comorbidity patterns with mood disorders shows that anxiety disorders and personality disorders frequently occur alongside mood episodes, reflecting shared vulnerabilities and overlapping symptoms. Sleep disturbances like sleep apnea also commonly appear in people with mood disorders, often worsening depressive or bipolar symptoms and sharing risk factors such as obesity and disrupted sleep. Schizophrenia, while it can feature mood symptoms, is a distinct psychotic disorder and does not typically co-occur with mood disorders at the same rate as the others; when mood symptoms are prominent with psychosis, the diagnosis of schizoaffective disorder is considered instead. So, the condition least likely to be comorbid with mood disorders is schizophrenia.