Table 5.

Effects of Privacy Condition on Primary Outcome Moderated by Age Category

Predictors of intention to download the app	Privacy marginal means	No privacy marginal means	Adj b	95% CI	ω2
Privacy	―	―	–0.02	–0.21, 0.16	–0.002
Age category	―	―	0.06	–0.24, 0.37	–0.001
Privacy x age category
≥35 years	2.63	2.66	―	―	―
18–34 years	2.77	2.72	0.08	–0.20, 0.35	–0.001

N=649 (no privacy n=334, privacy n=315). Measures assessed among U.S. adults in November 2020. The model compares the download intentions among participants in the privacy condition with those in the no-privacy condition (ref category), the 18–34 to 35+ age group categories, and the interaction of privacy and age category. The model adjusts for age; gender; race/ethnicity; the number of people in their household (including whether or not they live with children or a partner); their highest education level attained; their political identification; frequency of engaging in 3 COVID-19 prevention health behaviors in the past 7 days (e.g., masking, social distancing); how worried they were about someone they know getting COVID-19 (including themselves); and 3 categorical items: whether they work some or most days in close contact with people from outside their home, whether they know anyone who is at high risk for complications from COVID-19, and whether they know anyone who had a mild or severe case of COVID-19.

Adj, adjusted.