1 Tracked via the UCLA 3-item Loneliness Scale
2 Tracked via the 36-Item Short Form Survey Instrument Version 1 (SF-36)
3 Tracked via the SF-36
4 Tracked via the SF-36
5 Tracked via the Adult Social Care Outcomes Toolkit
6 Tracked by the Zarit Burden Interview 4-item screening questionnaire
7 Tracked via the Canadian Study on Health & Aging Clinical Frailty Scale