Table 2.

Average treatment effect of intervention on change in agreement with UC SRAP, stratified by demographics

	Difference-in-Differences/ Average Treatment Effect (95% CI)	Wald Z P-value
Age, years
< 35	4.6% (1.3%, 7.8%)	0.005
35–55	3.9% (1.5%, 6.3%)	0.001
> 55	6.6% (4.5%, 8.6%)	<.001
Racial/Ethnic Identity
Asian/Pacific Islander	6.3% (3.6%, 8.9%)	<.001
Black	5.6% (− 1.5%, 12.7%)	0.12
Hispanic/Latin	9.0% (2.9%, 15.1%)	0.004
More than one race	6.7% (− 9.4%, 22.8%)	0.41
White	4.5% (2.8%, 6.1%)	<.001
Other race	4.5% (− 0.8%, 9.8%)	0.09
Educational attainment
Less than Bachelor's	7.8% (2.8%, 12.9%)	0.002
Bachelor's or higher	4.8% (3.4%, 6.3%)	<.001
Health care professional employment
Non-health care professional	5.8% (4.2%, 7.6%)	<.001
Health care professional	3.4% (1.3%, 6.2%)	0.003
Political affiliation
Conservative	− 0.2% (− 5.9%, 5.5%)	0.94
Moderate	5.8% (2.3%, 9.3%)	0.001
Liberal	5.7% (4.0%, 7.4%)	<.001
Not political or prefer not to answer	5.3% (0.5%, 10.1%)	0.03