(c).

Combined telephone and web interventions (n = 10)
Authors	Caregiver intervention components					Caregiver applications						User control
	Skills training group (G) or individual (I)	Psychoeducation & resource materials	Self-monitoring/tracking	Reminders	Counseling group (G) or individual (I)	Email	Discussion forum/online chat	Online journal	Text message	Telephone calls∗∗	Useful links & resources	Facilitator-guided	Self-guided
Eisdorfer et al. [60]		X			X (G)		X				X	X
Grover et al. [61]		X			X (I)	X	X						X
Hicken et al. [62]	X (I)	X	X							X	X		X
Mahoney et al. [63]	X (I)	X	X				X						X
Oliver et al. [64]			X									X
Piette et al. [65]		X	X	X		X				X	X		X
Powell et al. [66]	X (I)	X										X
Steel et al. [67]		X	X		X (I)		X	X		X	X	X
Steffen and Grant [68]	X (I)	X										X
Williams et al. [69]	X (I)	X										X