Table 4.

Eligibility criteria for participant recruitment.

Patients
Inclusion criteria	Exclusion criteria
Clinical diagnosis of COPD	Patients unable to speak Portuguese fluently
Receiving treatment at the BHU in São Bernardo do Campo	Inability to provide written or oral informed consent
Legal adults in São Bernardo do Campo	Patients with a career in dentistry/medicine –to investigate lay perceptions
Healthcare professionals
Inclusion criteria	Exclusion criteria
Members of primary FHS teams	Non-specified
Practising in São Bernardo do Campo, São Paulo, Brazil
Involved with COPD patientsa

^aDue to practical reasons and the availability of staff for taking part in FGs, an ethical amendment was obtained to include additional HCPs who are not usually involved in assessing COPD patients. This included two physiotherapists, a speech therapist, and a nutritionist.