TABLE 4.

Summary of final linear regression model for combined knowledge score by individual student factors^a

Variable	Estimate (β)	SE	t value	p value
Intercept	1.557	0.086	18.123	<0.001
Course work	0.659	0.114	5.791	<0.001
Confidence	0.520	0.116	4.472	<0.001

^an = 511. Bolded values are significantly different from 0 (p < 0.05). These final models are the product of a model selection process that finds the most significant variables. Initially included variables were “Course work” (whether the student self-reported taking course work addressing vaccines), “Confidence” (whether the student reported being confident in their vaccine knowledge), “Gender,” “First-Generation” (college-going status), “Race/Ethnicity” (reference level is white race), “Expertise Level” (NPH, PH, or EBM status), and “Years in College” (linear variable, “freshman” designated as 0 years).