396
Participants
Start Date
December 1, 2021
Primary Completion Date
July 30, 2022
Study Completion Date
July 30, 2022
online health promotion video
Participants will watch an online health promotion video tailored to their current stage of change related to seasonal influenza vaccination uptake once every two weeks for four times (at week 0, 2, 4, and 6)
Control (same online health promotion video)
Participants will watch a same online video providing general advices related to seasonal influenza vaccination at week 0, 2, 4, and 6
Centre for Health Behaviours Research, the Chinese University of Hong Kong, Hong Kong
Chinese University of Hong Kong
OTHER