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. 2018 Feb 28;20(2):e73. doi: 10.2196/jmir.9003

Table 4.

Mediation analysis using bootstrapping method.

Independent variable	Mediating variable	Dependent variable	Indirect effect			Direct effect			Mediation proportion
Independent variable	Mediating variable	Dependent variable	2.5% CI	97.5% CI	Effect value	2.5% CI	97.5% CI	Effect value	Mediation proportion
INI^a	DK^b	HB^c	0.0275	0.1311	0.0793	0.0744	0.3096	0.1920	Partial mediation
INI	SE^d	HB	0.0186	0.1084	0.0635	0.0744	0.3096	0.1920	Partial mediation
INI	OE^e	HB	0.0159	0.1198	0.0679	0.0744	0.3096	0.1920	Partial mediation
AI^f	DK	HB	0.0180	0.0972	0.0576	−0.0050	0.2437	0.1220	Full mediation
AI	SE	HB	0.0181	0.1103	0.0642	−0.0050	0.2437	0.1220	Full mediation
AI	OE	HB	0.0057	0.0861	0.0459	−0.0050	0.2437	0.1220	Full mediation

^aINI: instrumental interaction.

^bDK: declarative knowledge.

^cHB: health behaviors.

^dSE: self-efficacy.

^eOE: outcome expectancy.

^fAI: affective interaction.