Characteristics of included studies
| PR studies (n=351) | SLH studies (n=8) | MPCI studies (n=35) | |
| Studies from high-income countries | Australia (n=24) Belgium (n=1) Canada (n=13) Denmark (n=9) Finland (n=1) France (n=29), Germany (n=16) Greece (n=2) Ireland (n=3) Italy (n=23) Japan (n=25) Korea (n=1) New Zealand (n=1) Norway (n=6) Poland (n=3) Portugal (n=6) Romania (n=1) Saudi Arabia (n=2) Spain (n=13) South Korea (n=1) Sweden (n=3) Switzerland (n=4) Taiwan (n=5) Netherlands (n=21) UK (n=62) US (n=29) | Denmark (n=2) UK (n=4) | Australia (n=2) Belgium (n=1) Canada (n=6) Germany (n=2) Italy (n=2) New Zealand (n=1) Sweden (n=1) Singapore (n=1) Switzerland (n=1) Netherlands (n=3) UK (n=5) USA (n=10) |
| Studies from upper-middle income countries | Brazil (n=4) China (n=16) Colombia (n=1) Thailand (n=3) Turkey (n=13) | Brazil (n=1) China (n=1) | |
| Studies from lower-middle income countries | Egypt (n=1) India (n=4) Indonesia (n=1) Iran (n=1) Nigeria (n=1) Sri Lanka (n=1) Tunisia (n=1) | ||
| Time period | 2000–2022 | 2009–2022 | 2003–2022 |
MPCI: multicomponent palliative care interventions; PR: pulmonary rehabilitation; SLH: singing for lung health.