Clinical trial Recruiting at 1 site Observational Ages 18 and up

Identifying risk factors for COVID-19 transmission in communities and workplaces

Official title: Risk Factors for Community- and Workplace Transmission of COVID-19

Run by Oslo University Hospital · NCT04320732 · Data updated 2026-11-12

This study is trying to find out what factors help spread COVID-19 in communities and workplaces by asking questions to people who have had the virus, healthcare workers, and healthy volunteers.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment250000 (estimated)
SponsorOslo University Hospital
Academic / other
Locations1 site (Oslo)
StatusRecruiting
StartedMarch 27, 2020
Main results expectedMarch 27, 2025
Study endsMarch 20, 2030
Registry record updatedDecember 13, 2021
Trial IDNCT04320732 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are Norwegian adults, including those diagnosed with COVID-19 and healthcare workers.

Probably not a fit

Patients who are unable to provide consent will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to identify real-life risk factors associated with COVID-19 transmission through an electronic questionnaire. Participants will include hospitalized and non-hospitalized COVID-19 patients, healthcare personnel, and healthy volunteers. The study will utilize a web-based platform for data collection and consent, ensuring compliance with GDPR regulations. By analyzing the collected data, the study seeks to inform targeted public health measures to mitigate the spread of the virus.

Why it matters

Potential benefit: If successful, this study could provide critical insights that help reduce COVID-19 transmission rates in communities and workplaces.

How similar studies have gone: Other studies have successfully identified risk factors for COVID-19 transmission, making this approach both relevant and necessary.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Norwegian adult

Exclusion Criteria:

* Unable to consent

Where it's running

  • Oslo University Hospital
    Oslo, Norway
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.