COVID-19 Vaccination Take-Up

Not Applicable

Completed

• Conditions: Covid19; Vaccination
• Interventions: Behavioral: Financial incentives; Behavioral: Convenient scheduling link; Behavioral: Race concordant; Behavioral: Gender concordant

• Registration Number: NCT04867174
• Lead Sponsor: National Bureau of Economic Research, Inc.

Brief Summary

In this work, the investigators are partnering with Contra Costa Health Services (CCHS), the department of health in Contra Costa County, CA, to measure COVID-19 vaccinations and other COVID-19 related preventive health behaviors in the county's Medicaid managed care population. This work will test ways to increase COVID-19 vaccine uptake. The investigators hypothesize that small financial incentives and other low-cost behavioral nudges can be used to increase vaccine uptake and reduce disparities in uptake among diverse racial/ethnic minority populations.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-04-27
• Study First Submitted QC: 2021-04-28
• Study First Posted: 2021-04-30
• Study Start: 2021-05-24
• Primary Completion: 2021-08-15
• Study Completion: 2022-05-24
• Results First Submitted: 2022-10-26
• Status Verified: 2024-03
• Results First Submitted QC: 2024-03-01
• Last Update Submitted: 2024-03-01
• Results First Posted: 2024-03-28
• Last Update Posted: 2024-03-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 2701

Inclusion Criteria

• age 18 and over
• member of Contra Costa Health Plan (CCHP)

Exclusion Criteria

• contraindications to vaccination, as determined by county health plan or other medical staff.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Control Arm	Convenient scheduling link	No messaging about COVID-19 vaccination
Control Arm	Financial incentives	No messaging about COVID-19 vaccination
Consequences message	Convenient scheduling link	Participants view a video with information about the consequences of not getting vaccinated against COVID-19.
Emotional message	Financial incentives	Participants view an emotional video from the state of California about getting back to normal.
Consequences message	Financial incentives	Participants view a video with information about the consequences of not getting vaccinated against COVID-19.
Emotional message	Convenient scheduling link	Participants view an emotional video from the state of California about getting back to normal.
Safety and effectiveness message	Race concordant	Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines
Consequences message	Race concordant	Participants view a video with information about the consequences of not getting vaccinated against COVID-19.
Safety and effectiveness message	Convenient scheduling link	Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines
Safety and effectiveness message	Financial incentives	Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines
Safety and effectiveness message	Gender concordant	Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines
Consequences message	Gender concordant	Participants view a video with information about the consequences of not getting vaccinated against COVID-19.

Primary Outcome Measures

Name	Time	Method
Rate of COVID-19 Vaccination at 1 Month	1 month	Percent of the population with at least one COVID-19 vaccination

Trial Locations

Locations (1)

Contra Costa Health Plan; 🇺🇸 Martinez, California, United States