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

Use of Small Animations Movies to Increase Response in a National Health Survey. A Random-ised Controlled Trial. A Study Protocol

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05520242
Enrollment
201200
Registered
2022-08-29
Start date
2021-02-05
Completion date
2021-05-15
Last updated
2022-08-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-response, Response

Brief summary

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.

Detailed 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.

Interventions

OTHERUse of small animation movies to increase response in a national health survey

Inclusion of animation movies in the invitation cover letter to a national health survey is tested in an embedded randomized controlled trial in the Danish National Health Survey 2021.

Sponsors

Region Capital Denmark
CollaboratorOTHER
North Denmark Region
CollaboratorOTHER_GOV
Region Zealand
CollaboratorOTHER
University of Southern Denmark
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
No

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).

Design outcomes

Primary

MeasureTime frameDescription
The number of invited individuals who respond to the survey3 monthA respond is registered if the invited sample member responds to at least 1 question

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026