Changes in Depression Subtypes Among Men in STAR*D: A Latent Transition Analysis

Area of Science:

• Psychiatry
• Clinical Psychology
• Mental Health Research

Background:

• Major depression significantly impacts men, yet current diagnostic criteria may not fully represent their experiences.
• Heterogeneity in depressive symptom presentation among men requires further characterization.
• Understanding distinct depression subtypes in men is crucial for effective treatment.

Purpose of the Study:

• To identify latent subtypes of major depression in men.
• To examine the changes in these subtypes over a 12-week treatment period.
• To analyze treatment response based on identified depression subtypes.

Main Methods:

• Latent transition analysis applied to data from 387 men in Level 1 of the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) trial.
• Utilized items from the Quick Inventory of Depressive Symptomatology (self-report) to define latent depression subtypes.
• Assessed symptom patterns at baseline and Week 12 study visits.

Main Results:

• Four distinct depression subtypes were identified at baseline: Mild (10%), Moderate (53%), Severe with Psychomotor Slowing (20%), and Severe with Psychomotor Agitation (17%).
• At Week 12, subtypes shifted to Symptom Resolution (41%), Mild (36%), Moderate (18%), and Severe with Psychomotor Slowing (5%).
• Men with Mild depression had the highest likelihood of achieving Symptom Resolution (69%), while those with Severe Agitation showed no resolution (0%).

Conclusions:

• Depression in men is heterogeneous, with distinct subtypes exhibiting varied treatment responses.
• Focusing solely on overall depression scores may obscure critical differences in symptom patterns and treatment outcomes.
• Tailoring interventions based on specific symptom profiles, rather than general severity, may improve depression management in men.