Geneva, Aug. 6 -- International Clinical Trials Registry received information related to the study (ChiCTR2600129085) titled 'Implementation Effect and Health Economic Evaluation of Digital Messaging Nudges to Improve Influenza Vaccination Uptake Among Older Adults: A Randomized Controlled Trial' on July 30.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: Peking University Third Hospital

Condition: Influenza vaccination rate

Intervention: Control group:No intervention standard message group:Provide standardized message to the group gain-framed narrative message group:Send the gain framework information loss-framed narrative message group:Send the loss framework information personalized narrative message gr...