Reducing Delay of Vaccination in Children Study (REDIVAC)

Kaiser Permanente

Status: Completed

Conditions: Communicable Diseases

Treatments: Behavioral: Tailored; Behavioral: Untailored

Study type: Interventional

Funder types: Other

Identifiers

NCT02665013

1R01HD079457-01

Details and patient eligibility

About

This trial will assess the effectiveness of a tailored message intervention on decreasing infant undervaccination.

Full description

This intervention is based on the concept of "message tailoring," whereby each mother is provided with individually customized vaccine- related information that addresses their unique concerns, values, questions and logistical barriers. Message tailoring is an evidence-based health messaging strategy that has been shown to improve compliance with a wide variety of preventive health care behaviors among diverse patient populations.

In this three-armed trial the investigator will examine how providing mothers with multiple "doses" of a tailored versus untailored version of our intervention compares with "usual care" for the impact on infant under-vaccination. Secondary outcomes will include maternal vaccine-related attitudes (including level of vaccine hesitancy), alignment of maternal values with provider recommendations, and self-efficacy for overcoming logistical barriers to vaccination.

Enrollment: 824 patients

Sex: Female

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Enrolled at Kaiser Permanente Colorado, Pregnant in the 3rd trimester, and plan to use Kaiser Permanente Colorado for the child's medical care received.

Exclusion criteria

• less then 18 years of age, non-english speaking and an inability to consent

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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824 participants in 3 patient groups, including a placebo group

Tailored

Experimental group

Description:

Participants will complete surveys at each intervention time point. Based on survey responses, they will receive vaccine information on the study website tailored to their vaccine concerns and values

Treatment:

Behavioral: Tailored

Untailored

Placebo Comparator group

Description:

Participants will complete surveys at each intervention time point and receive vaccine information on the study website. The vaccine information will NOT be tailored to their concerns and values.

Treatment:

Behavioral: Untailored

Usual Care

No Intervention group

Description:

Participants will complete surveys at each intervention time point. They will receive vaccine information sheets that are provided in the well child visits at enrollment in the study.