Shared Medical Appointment for COPD Patients (SMA-COPD)

Participants assigned to this arm will receive a self-management intervention delivered through shared medical appointments (SMAs). The SMA intervention will be conducted once every two months for a total of three sessions over six months. Each session includes structured medical consultation, health education, behavioral guidance based on the Behavior Change Wheel (BCW) framework, and facilitated peer discussion.

Participants receive routine one-on-one GP care plus a printed COPD self-management education handbook.