Table 1.

Characteristics of participants.

Retired/retiring driver (RD)
ID	Age	Male/female	Lives with/or alone	Geographic location	Still driving? Yes/no	Alternative driver/s at home? Yes/no	Main driver (is/was)? Yes/no/shared
RD01	50	Female	Partner and children	Metro	No	Yes	Shared
RD02	55	Female	Partner and children	Regional	Yes	Yes	Shared
RD03	62	Male	Partner and children	Metro	Yes	Yes	Yes
RD04	63	Male	Partner and children	Rural	No	Yes	Yes
RD05	63	Male	Partner	Metro	No	Yes	Yes
RD06	69	Female	Partner	Metro	No	Yes	No
RD07	74	Male	Partner	Metro	Yes, not at night	Yes	Yes
RD08	68	Female	Alone	Regional	Yes	No	Yes
RD09	54	Female	Child	Metro	No	Yes	Yes
RD10	62	Male	Partner& child	Metro	Yes	Yes	Yes
Care partner (CP)
ID	Age	Male or female	Lives with person with YOD Yes/no	Geographic location	Person with YOD driving? Yes/no	Relationship to person with YOD	Is/was person with YOD main driver? Yes/no/shared
CP010	58	Female	Yes	Regional	No	Spouse	Shared
CP011	58	Female	Yes	Rural	No	Spouse	Shared
CP012	60	Female	Yes	Metro	No	Spouse	Shared
CP013	69	Male	Yes	Metro	No	Spouse	No
CP014	45	Female	Yes	Metro	No	Child	Yes
CP015	72	Female	Yes	Metro	Yes	Spouse	Yes
CP016	85	Male	No	Metro	No	Parent	Yes
CP017	61	Female	Yes	Metro	Yes	Spouse	Shared