Use of Animations Movies to Increase Response in a National Health Survey

University of Southern Denmark (SDU)

Status: Completed

Conditions: Non-response; Response

Treatments: Other: Use of small animation movies to increase response in a national health survey

Study type: Interventional

Funder types: Other

Identifiers

NCT05520242

10.882

Details and patient eligibility

About

The aim of this study is to examine the potential for animation movies to improve response rates and sample composition in an embedded randomized controlled trial in the Danish National Health Survey 2021. The overall research question is whether cover letters including an animation movie can perform better than generic letters.

Full description

The aim of this study is to examine the potential of animation videos to improve response rates and sample composition in an embedded randomized controlled trial in the Danish National Health Survey 2021 (DNHS-2021). The overall research question is whether digital cover letters including an animation video can perform better than digital letters without animations. The proposition is that such letters should increase the willingness of some sample members to participate by means of increased motivation and reduced complexity, and that this will be reflected in higher response rates. In addition to examining whether it can be advantageous for overall response rates to use cover letters including animation videos, this study also examines the effect of different versions of the animation videos across sample subgroups in order to identify how to best target potential non-respondents in future surveys.

Enrollment: 201,200 patients

Sex: All

Ages: 16+ years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

• Aged 16 years or older and living in Denmark at January 1th 2021.
• Able to receive an invitation through a secure electronical mail service (Digital Post).

Trial design

Primary purpose: Health Services Research

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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201,200 participants in 5 patient groups

Control

No Intervention group

Description:

No animation

General animation movie

Experimental group

Description:

Participants randomized to receive the general animation video

Treatment:

Other: Use of small animation movies to increase response in a national health survey

Men aged 16-24 years

Experimental group

Description:

Participants randomized to receive the animation targeted men aged 16-24 years

Treatment:

Other: Use of small animation movies to increase response in a national health survey

Women aged 75 years or older

Experimental group

Description:

Participants randomized to receive the animation targeted women aged 75 years or older

Treatment:

Other: Use of small animation movies to increase response in a national health survey

Ethnic minorities

Experimental group

Description:

Participants randomized to receive the animation targeted ethnic minorities

Treatment:

Other: Use of small animation movies to increase response in a national health survey