Influenza Reminder Text-Messaging

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

228361 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-09-03

Study Completion Date

2024-12-31

Brief Summary

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Through a large, population-level quality improvement effort within the Children's Hospital of Philadelphia Care Network, we will evaluate text message reminders on flu vaccination rates for both patients with and without a scheduled well child care visit during flu season.

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Detailed Description

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This is a randomized control trial with two patient cohorts: patients with and without a scheduled well child care visit during the upcoming 2024 flu season. Patients with a scheduled well child visit will be randomized into one of three groups (control, intervention message #1, or intervention message #2). Patients within the intervention groups will receive a one-time text message reminder to get their flu shot for their child at their child's upcoming well visit. Intervention groups will be texted at the same time, the same month as their child's well visit. The text message language will differ between groups. Patients without a scheduled upcoming well child visit during the 2024 flu season will also be randomized into one of three groups (control, intervention message #1, or intervention message #2). Intervention groups will be texted at the same time, at the start of flu season. The text message language will differ between groups.

Flu vaccine uptake will be measured within each patient cohort.

Conditions

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Influenza

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Patients (recipients of text message reminders) will not know which group they are in.

Study Groups

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Cohort 1a

Patients within Cohort 1 have an upcoming well child visit between September-December 2024. Patients within Cohort 1a are those randomized to CONTROL and will not receive a text message reminder about getting their flu shot at their upcoming visit.

Group Type NO_INTERVENTION

No interventions assigned to this group

Cohort 1b

Patients within Cohort 1 have an upcoming well child visit between September-December 2024. Patients within Cohort 1b are those randomized to INTERVENTION MESSAGE #1 and will receive text message reminder (variation #1) about getting their flu shot at their upcoming visit.

Group Type EXPERIMENTAL

Text message reminder

Intervention Type BEHAVIORAL

One-time text message reminder with information about getting flu vaccine at CHOP

Cohort 1c

Patients within Cohort 1 have an upcoming well child visit between September-December 2024. Patients within Cohort 1c are those randomized to INTERVENTION MESSAGE #2 and will receive text message reminder (variation #2) about getting their flu shot at their upcoming visit.

Group Type EXPERIMENTAL

Text message reminder

Intervention Type BEHAVIORAL

One-time text message reminder with information about getting flu vaccine at CHOP

Cohort 2a

Patients within Cohort 2 do not have an upcoming well visit between September-December 2024, but completed their well visit between January 2023 through August 2024. Patients within Cohort 2a are those randomized to CONTROL and will not receive a text message reminder about getting their flu shot.

Group Type NO_INTERVENTION

No interventions assigned to this group

Cohort 2b

Patients within Cohort 2 do not have an upcoming well visit between September-December 2024, but completed their well visit between January 2023 through August 2024. Patients within Cohort 2b are those randomized to INTERVENTION MESSAGE #1 and will receive text message reminder (variation #3) about getting their flu shot this upcoming flu season.

Group Type EXPERIMENTAL

Text message reminder

Intervention Type BEHAVIORAL

One-time text message reminder with information about getting flu vaccine at CHOP

Cohort 2c

Patients within Cohort 2 do not have an upcoming well visit between September-December 2024, but completed their well visit between January 2023 through August 2024. Patients within Cohort 2b are those randomized to INTERVENTION MESSAGE #2 and will receive text message reminder (variation #4) about getting their flu shot this upcoming flu season.

Group Type EXPERIMENTAL

Text message reminder

Intervention Type BEHAVIORAL

One-time text message reminder with information about getting flu vaccine at CHOP

Interventions

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Text message reminder

One-time text message reminder with information about getting flu vaccine at CHOP

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* All patients between ages 6 months-18 years old who have an upcoming well visit during the Fall of 2024 (September through December 2024) or had a completed well visit from January 2023 through August 2024
* Patients have a mobile phone number within their medical record
* Patients have opted-in to text communications from CHOP
* English-speaking

Minimum Eligible Age

6 Months

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes