Availability and Advice on Test Uptake During the COVID-19 Pandemic: a Vignette Study.

NCT05215483 | Completed

• 1 other identifier: G&M-537
• Study Type: interventional
• Target: 3,270
• Locations: 1 country
• Sites: 1

Brief Summary

Lateral Flow Testing (LFT) use for COVID-19 related symptoms continues to rise, despite governmental advice to test at a test facility. In this study we investigate whether 1) adjusting the governmental testing advice will lead to a collective increase of people who test with COVID-19 symptoms and if this leads to a higher strategy sensitivity.

Conditions

COVID-19

Keywords

Test intentions; Lateral Flow test uptake

Outcome Measures

Primary Outcomes (2)

• Average strategy sensitivity over time: day 1

  The sensitivity of the test chosen was used to convert each answer: test facility on day 1 = 1, LFT on day 1= 0.8, Wait and see or No test = 0. Sensitivity scores were then averaged over the four scenario's.

  average strategy sensitivity day 1

• Maximum average strategy sensitivity over time

  The sensitivity of the test chosen was used to convert each answer: test facility on day 1 or day 3 = 1, LFT on day 1= 0.8, LFT on day 3= 0.7, Wait and see or No test = 0. Sensitivity scores were then averaged over the four scenario's. The highest score of day 1 and day 3 was used to calculate the maximum sensitivity score.

  maximum average strategy sensitivity day 1 and 3

Secondary Outcomes (4)

• Willingness to test day 1

  Day 1

• Willingness to test - maximum

  Day 1 and 3

• Type of test chosen day 1

  Day 1

• Type of test chosen day 3

  Day 3

Study Arms (4)

Customised advice + LFT available at home

EXPERIMENTAL

Respondents will see an altered testing advice in text and picture in which they are allowed to use LFT with corona related symptoms. Respondents will informed in writing that they don't currently have any LFT available at home.

Behavioral: Customised testing advice; Behavioral: LFT available

Customised advice + No LFT available at home

EXPERIMENTAL

Respondents will see an altered testing advice in text and picture in which they are allowed to use LFT with corona related symptoms. Respondents will informed in writing that they don't currently have any LFT available at home.

Behavioral: Customised testing advice; Behavioral: No LFT available

Regular advice + LFT available at home

EXPERIMENTAL

Respondents will see the regular testing advice in text and picture with the current governmental advice to visit a test facility with corona related symptoms. Respondents will informed in writing that they don't currently have any LFT available at home.

Behavioral: Regular testing advice; Behavioral: LFT available

Regular advice + No LFT available at home

ACTIVE COMPARATOR

Respondents will see the regular testing advice in text and picture with the current governmental advice to visit a test facility with corona related symptoms. Respondents will informed in writing that they don't currently have any LFT available at home.

Behavioral: Regular testing advice; Behavioral: No LFT available

Interventions

Customised testing advice BEHAVIORAL

Customised advice: With Corona related symptoms, get tested at a test facility. If this isn't possible, use a Lateral Flow test.

Customised advice + LFT available at home; Customised advice + No LFT available at home

Regular testing advice BEHAVIORAL

Government guideline testing advice: "With Corona related symptoms, get tested at a test facility".

Regular advice + LFT available at home; Regular advice + No LFT available at home

LFT available BEHAVIORAL

LFT availability: Enough lateral flow tests available at home

Customised advice + LFT available at home; Regular advice + LFT available at home

No LFT available BEHAVIORAL

LFT availability: No lateral flow tests available at home

Customised advice + No LFT available at home; Regular advice + No LFT available at home

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• non

You may not qualify if:

• non

Sponsors & Collaborators

• National Institute for Public Health and the Environment (RIVM): lead

Study Sites (1)

National Institute for Public Health and the Environment

Bilthoven, Utrecht, 3720 BA, Netherlands

Location

Related Links

• Do members of the public think they should use lateral flow tests or PCR tests when they have COVID-19-like symptoms? The COVID-19 Rapid Survey of Adherence to Interventions and Responses \[CORSAIR\] study,

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, Viral; Pneumonia; Respiratory Tract Infections; Infections; Virus Diseases; Coronavirus Infections; Coronaviridae Infections; Nidovirales Infections; RNA Virus Infections; Lung Diseases; Respiratory Tract Diseases

Study Officials

• Marijn de Bruin, prof

  RIVM

  STUDY CHAIR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, INVESTIGATOR
• Purpose: PREVENTION
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER GOV
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Researcher Corona Behavioural Unit

Model Details: In an online randomised multi-factorial survey (vignette study) participants are randomised to assess four scenario's. Between subject testing advise is randomised (IV1; 2 levels) and the availability of LFT (IV2; 2 levels). Within subject we asked participants to assess their most likely behaviour on day 1 of symptoms and day 3 of unchanged symptoms (IV3; 2 levels). Corona-related symptoms are randomly presented (IV4; 4 levels) and new incidences of symptoms are presented in additional vignettes describing new months (IV5; 4 levels).

Study Record Dates

• First Submitted: January 24, 2022
• First Posted: January 31, 2022
• Study Start: November 11, 2021
• Primary Completion: November 16, 2021
• Study Completion: November 16, 2021
• Last Updated: January 31, 2022

Record last verified: 2022-01

Data Sharing

• IPD Sharing: Will not share

Locations

NL (1)