Two Behavioral Interventions for Patients with Major Depression and Severe COPD

Area of Science:

• Pulmonary Medicine
• Psychiatry
• Rehabilitation

Background:

• Chronic obstructive pulmonary disease (COPD) frequently co-occurs with major depression.
• Personalized Intervention for Depressed Patients with COPD (PID-C) showed effectiveness in improving depressive symptoms.
• A novel Problem Solving-Adherence (PSA) intervention was developed to enhance PID-C's efficacy.

Purpose of the Study:

• To compare the efficacy of the PSA intervention against the PID-C intervention in reducing depressive symptoms in COPD patients.
• To identify distinct trajectories of depressive symptoms and compare the clinical profiles of patients within these trajectories.

Main Methods:

• A randomized controlled trial was conducted with 101 patients diagnosed with COPD and major depression.
• Participants received either 14 sessions of PID-C or PSA over 26 weeks.
• Depressive symptoms were measured using the 24-item Hamilton Depression Rating Scale, with exploratory latent class growth modeling used for trajectory analysis.

Main Results:

• The PSA intervention was not more efficacious than PID-C in reducing depressive symptoms.
• Latent class growth modeling identified two trajectories: a favorable course (72% of patients) with symptom decline and an unfavorable course (28%) with persistent symptoms.
• Patients with an unfavorable course were younger and exhibited higher disability, anxiety, neuroticism, dyspnea-related limitations, and lower self-efficacy.

Conclusions:

• Both PID-C and PSA interventions led to sustained improvements in depressive symptoms.
• PID-C is suitable for integration into community rehabilitation programs for depressed COPD patients.
• Patients with high disability, anxiety, neuroticism, and low self-efficacy require close monitoring and tailored interventions for better outcomes.