Influenza Reminder Text-Messaging

Children's Hospital of Philadelphia (CHOP)

Status: Completed

Conditions: Influenza

Treatments: Behavioral: Text message reminder

Study type: Interventional

Funder types: Other

Identifiers

NCT06587984

24-022516

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 228,361 patients

Sex: All

Ages: 6 months to 18 years old

Volunteers: Accepts Healthy Volunteers

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

Exclusion criteria

• Subjects who do not meet the above inclusion criteria will be excluded

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Factorial Assignment

Masking: Single Blind

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228,361 participants in 6 patient groups

Cohort 1a

No Intervention group

Description:

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.

Cohort 1b

Experimental group

Description:

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.

Treatment:

Behavioral: Text message reminder

Cohort 1c

Experimental group

Description:

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.

Treatment:

Behavioral: Text message reminder

Cohort 2a

No Intervention group

Description:

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.

Cohort 2b

Experimental group

Description:

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.

Treatment:

Behavioral: Text message reminder

Cohort 2c

Experimental group

Description:

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.

Treatment:

Behavioral: Text message reminder