Table 1 Search strategy and study selection
| Search terms |
1. Volunteers OR lay navigators OR peer groups 2. Advance care planning OR advance directives OR palliative care OR hospice 3. Education OR experience OR sharing OR encouraging 4. Qualitative methods OR phenomenological study OR focus groups OR grounded theory OR observation |
| Inclusion criteria |
1. Qualitative methods 2. Participants are non-medical peers (i.e., volunteer, patient navigator, peer educator) 3. Setting related to advance care planning, palliative care, hospice, or end-of-life |
| Exclusion criteria |
1. Non-English language 2. Not full papers (i.e., abstracts, posters) 3. No extractable data from peers 4. No data relating to communication |