Table 1.

Measurement of the primary and secondary outcomes in the intervention study

Primary outcome	Measurement
Caregiver stress	For caregivers of PWD: Zarit Burden Interview (12 items) [25]
Secondary outcomes
Depressive symptoms	Patient Health Questionnaire (PHQ-9, 9 items) [26]
Loneliness	Single item question on loneliness [27]
Quality of Life	CarerQol-7D (7 dimensions) [28]