Table 2.

Hierarchical linear regression model effects of eHealth Literacy on intensity of Instagram use (n = 200 Instagram users)

				95% CI
Predictor	R2 Change	b	SE b	Lower Bound	Upper Bound
Step 1	.14***
Agea		−0.42***	0.11	−0.63	−0.21
Genderb		2.18*	1.10	0.03	4.33
GPA		0.23	0.74	−1.23	1.68
Ethnicity		−2.20	1.38	−4.91	0.52
Caucasian		2.29	2.02	−1.70	6.28
Asian American		0.61	2.29	−3.91	5.13
Black/African American		1.19	2.69	−4.12	6.49
Step 2	.18**
eHealth Literacyd		.30**	.10	0.09	0.50
Total R2	.18**
Adjusted R2	.14**

^aAge (centered at the mean).

^bGender (0 = male, 1 = female).

^cIntensity of Instagram use (centered at the mean).

^deHealth literacy (centered at the mean)

^*p < .05.

^**p < .01.

^***p < .001