Table 3.

Indirect effects multiple mediation with fitness app use frequency.

Mediator		Indirect effect (a × b)	Bootstrapped SEa	z	P	Normal-based 95% CI
zBMIb
	Perceived behavioral control to eat healthy	−0.00	0.00	−0.89	.37	−0.01 to 0.00
	Attitude to eat healthy for the good taste of healthy foods	0.00	0.00	0.03	.98	−0.00 to 0.00
	Attitude to eat healthy for overall health	0.00	0.00	0.28	.78	−0.00 to 0.00
	Attitude to eat healthy for appearance	0.02	0.01	2.28	.02	0.00-0.03
	Social norm to eat healthy	0.00	0.00	0.28	.78	−0.01 to 0.01
	Social support to eat healthy	0.00	0.00	0.99	.32	−0.00 to 0.01
	Total indirect effect	0.02	0.01	2.00	.046	0.00 to 0.03
Healthy snack ratio
	Perceived behavioral control to eat healthy	0.11	0.11	1.01	.31	−0.10 to 0.32
	Attitude to eat healthy for the good taste of healthy foods	−0.01	0.05	−0.19	.85	−0.11 to 0.09
	Attitude to eat healthy for overall health	0.01	0.04	0.32	.75	−0.07 to 0.10
	Attitude to eat healthy for appearance	0.08	0.07	1.07	.29	−0.06 to 0.22
	Social norm to eat healthy	−0.00	0.03	−0.06	.96	−0.05 to 0.05
	Social support to eat healthy	0.05	0.06	0.81	.42	−0.07 to 0.17
	Total indirect effect	0.24	0.18	1.30	.20	−0.12 to 0.60
Healthy beverage ratio
	Perceived behavioral control to eat healthy	0.10	0.10	1.04	.30	−0.09 to 0.30
	Attitude to eat healthy for the good taste of healthy foods	0.01	0.04	0.15	.88	−0.07 to 0.08
	Attitude to eat healthy for overall health	0.04	0.06	0.62	.54	−0.08 to 0.15
	Attitude to eat healthy for appearance	0.09	0.08	1.11	.26	−0.07 to 0.27
	Social norm to eat healthy	0.01	0.05	0.24	.81	−0.09 to 0.12
	Social support to eat healthy	0.08	0.07	1.24	.22	−0.05 to 0.21
	Total indirect effect	0.33	0.17	1.97	.049	0.00 to 0.66

^aSE: standard error.

^bzBMI: body mass index z-scores.