Table 1.

Sample characteristics

Variable	Percentage of participants
Age
18–24 years	6.0
25–34 years	37.5
35–44 years	13.9
45–54 years	12.0
55 years and older	30.6
Education
Less than high school diploma	0.7
High school diploma	9.6
Some college or associates degree	20.1
Bachelor’s degree	46.4
Master’s degree	21.2
Professional degree	1.1
Doctorate	0.9