262,085
Participants
Start Date
September 7, 2022
Primary Completion Date
April 1, 2023
Study Completion Date
April 1, 2023
Text Fixed R/R Messages with Direct Appointment Schedule Link
Participants in this arm will receive up to 3 R/R messages by text. R/R message will be sent with a Direct Appointment Scheduling link and instructions to make a flu vaccine appointment.
Text Pre-Appointment Reminder
Participants will receive a Pre-Appointment Reminder via text when they schedule a visit during the study period.
Portal Pre-Commitment Prompt with Tailored R/R Messages with Direct Appointment Schedule Link
Participants in this arm will receive a pre-commitment prompt message by portal in September. Tailored R/R messages will be sent monthly by portal based on time and place selected by patients (up to 3). R/R message will be sent with a Direct Appointment Scheduling link and instructions to make a flu vaccine appointment.
Portal Fixed R/R Messages with Direct Appointment Schedule Link
Participants in this arm will receive up to 3 R/R messages by portal. R/R message will be sent with a Direct Appointment Scheduling link and instructions to make a flu vaccine appointment.
Portal Pre-Appointment Reminder
Participants will receive a Pre-Appointment Reminder advising them to ask their doctor for the flu vaccine at their upcoming appointment via portal when they schedule a visit during the study period.
University of California, Los Angeles, Los Angeles
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
University of California, Los Angeles
OTHER