Table 1.

Inclusion and exclusion criteria based on modified PICO ²⁶

PICoS	Inclusion criteria	Exclusion criteria
Population	At least one person with multimorbidity (defined as ≥2 chronic diseases) Community‐dwelling adults (≥18 years old)	Single named condition focus
Phenomenon of interest	Financial burden for people with multimorbidity
Context	Any country Primary and secondary care	Residential health care facilities
Study type	Qualitative Original research (eg interviews or focus groups) Mixed methods	Quantitative