COVID-19 Vaccination Take-Up

National Bureau of Economic Research, Inc.

Status: Completed

Conditions: Vaccination; Covid19

Treatments: Behavioral: Convenient scheduling link; Behavioral: Financial incentives; Behavioral: Gender concordant; Behavioral: Race concordant

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT04867174

27165

P30AG034532 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

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.

Enrollment: 2,701 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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.

Trial design

Primary purpose: Health Services Research

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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2,701 participants in 4 patient groups, including a placebo group

Control Arm

Placebo Comparator group

Description:

No messaging about COVID-19 vaccination

Treatment:

Behavioral: Convenient scheduling link

Behavioral: Financial incentives

Emotional message

Experimental group

Description:

Participants view an emotional video from the state of California about getting back to normal.

Treatment:

Behavioral: Convenient scheduling link

Behavioral: Financial incentives

Safety and effectiveness message

Experimental group

Description:

Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines

Treatment:

Behavioral: Race concordant

Behavioral: Convenient scheduling link

Behavioral: Financial incentives

Behavioral: Gender concordant

Consequences message

Experimental group

Description:

Participants view a video with information about the consequences of not getting vaccinated against COVID-19.

Treatment:

Behavioral: Race concordant

Behavioral: Convenient scheduling link

Behavioral: Financial incentives

Behavioral: Gender concordant