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Completed

NCT Number: NCT05520242

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

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.

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Key information

Conditions

Response Non-response

Age range

16 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

National Institute of Public health, University of Southern Denmark

Copenhagen, 1353, Denmark

About this study

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.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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).

Treatment and study plan

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

Other

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.

Primary outcomes

  1. The number of invited individuals who respond to the survey

    Time frame: 3 month

    A respond is registered if the invited sample member responds to at least 1 question

Sponsors and collaborators

Lead sponsor

University of Southern Denmark

Other

Collaborators

  • North Denmark Region
  • Region Capital Denmark
  • Region Zealand

Registry information

Official study title

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

Important dates

Study start
2021
Primary completion
2021
Study completion
2021
First posted
Aug 29, 2022
Registry last updated
Aug 29, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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