Table 6.

Classification of the statistically significant outcomes by categories of Internet-based interventions and according to the Stress Process Model.^a

Outcome		Web-based education interventions				Self-help Web-based therapeutic interventions			Human-supported Web-based therapeutic interventions
		[32]	[36]	[38]	[27]		[34]	[28]		[30]	[29,31,35]	[33]	[37]
Primary stressors
	Problematic behavior									0
	Relationship quality									0b
Secondary role strains
	Disruptiveness										0
Secondary intrapsychic strains
	Caregiver gain				+
	Mastery										0	+	0
	Self-esteem												0
Outcomes
	Depression		0	0	+			+		0	+		+
	Anxiety				+			+
	Stress				+b					0
	Caregiver strain				+
	Caregiver burden	0		0						0	+
	Physical burden										0
	Self-perceived health
	Quality of life		0	0			0
Mediators
	Intention to get support				+b
	Social support												0
	Coping				0					0b
Others
	Self-efficacy				+b					0b
	Knowledge						+b			+b
	Skill application						+b
	Perceived bonding										+

^a+: Statistically significant effect (P<.05) of the intervention on the measured outcome (either improving positive factors or decreasing adverse factors); 0: not statistically significant effect.

^bValidation process of the measure was not reported.