Data Collection
Participants received $25 incentives at each data collection time (baseline registration, 1 week, 1 month, and 6 months). We collected self-reported baseline data and sociodemographic information online as a 2-part survey (at registration and 1 week) to reduce participant burden. We sent up to 4 email reminders over 2 weeks to complete the surveys online. If participants failed to respond to our email messages for the 6-month survey, we contacted them to complete the survey over the phone. Data collection was completed in September 2019.