The Danish Occupational Medicine Cohort - Long-term Prognosis for Patients With Work-related Disorders

NCT04459793 | Unknown

• 1 other identifier: DST7055
• Study Type: observational
• Target: 145,521
• Locations: 1 country
• Sites: 1

Brief Summary

Each year about 10.000 patients are referred due to suspected work-related disorders to the Danish departments of occupational medicine. In Denmark and internationally there is a lack of follow-up studies investigating the long-term prognosis of employees with work-related disorders. To facilitate long-term prognostic studies for work-related conditions a Danish Occupational Medicine Cohort has been established through the Danish population registers.

Conditions

Work-Related Condition

Keywords

Prognosis; Work-related disorders; Occupational medicine

Outcome Measures

Primary Outcomes (2)

• Annual work participation score

  Work participation score is defined as number of weeks of employment relative to the total sum of number of weeks of employment plus number of weeks on temporary or permanent health related public compensation as registered by the Danish National Register on Public Transfer Payments register (DREAM).

  5 years

• Annual health care utilization

  Primary and secondary Health care contacts - includes all face to face contacts from the Danish National Health Service Register and Danish National Patient Register

  5 years

Eligibility Criteria

• Age: 16 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

The cohort was created through The Danish National Patient Register and comprises all patients seen in Danish Departments of Occupational Medicine from 2000-2018 (N= 145.521). Numerous register data are included in the database from five years prior to time of inclusion until 2018. The cohort will be updated with new patients and register data regularly.

You may qualify if:

• A record of contact at Danish departments of occupational medicine with a relevant primary or secondary diagnosis according to the International Classification of Diseases, 10th revision.

You may not qualify if:

• No record of contact or only a record of referral without subsequent records of relevant primary or secondary diagnosis.

Sponsors & Collaborators

• Regional Hospital West Jutland: lead
• Aarhus University Hospital Skejby: collaborator
• University of Aarhus: collaborator
• Aalborg University Hospital: collaborator

Study Sites (1)

David H Christiansen

Herning, Central Jutland, 7400, Denmark

Location

Related Publications (2)

• Persson ML, Willert MV, Kyndi M, Dalgaard VL. Work participation and disability pension after work-related PTSD: trajectories and impact of occupation. Occup Environ Med. 2026 Feb 3:oemed-2025-110412. doi: 10.1136/oemed-2025-110412. Online ahead of print.

  PMID: 41633844 DERIVED

• Willert MV, Christiansen DH, Dalgaard L, Vestergaard JM, Andersen JH, Kyndi M. Developing prognostic models for health care utilization in patients with work-related mental health problems. BMC Health Serv Res. 2023 Aug 7;23(1):834. doi: 10.1186/s12913-023-09802-z.

  PMID: 37550656 DERIVED

Study Officials

• David H Christiansen

  Occupational Medicine, Regional Hospital Herning

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: July 1, 2020
• First Posted: July 7, 2020
• Study Start: January 1, 2000
• Primary Completion: December 31, 2025
• Study Completion: December 31, 2025
• Last Updated: September 16, 2021

Record last verified: 2021-09

Data Sharing

• IPD Sharing: Will not share

Locations

DK (1)