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CompletedNCT01989728PRWUpdated Nov 21, 2013

Prevalence and Effect of Detecting Common Mental Disorders in Long-term Sickness Absence

An interventional study of psychiatric examination and feedback in Psychiatric Disorders, Common Mental Disorders and Depression, sponsored by Region MidtJylland Denmark. Completed at 1 site in Denmark. Open to male participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2013-11-21.

Primary conditionSomatoform DisordersRegistry: Mental DisordersReclassifiedWhy we changed it
Registry
Mental Disorders — the first condition term the registry derived for this study.
ClinicalTrials.gg
Somatoform Disorders
Why
  1. The study's listed conditions name Somatoform Disorders, a narrower term within Mental Disorders.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Region MidtJylland Denmark · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
1,121
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
Male
01

Study summary

The hypothesis was that a large fraction of individuals with common mental disorders were undetected in long-term sickness and that detection of the disorders by screening, a psychiatric diagnostic examination and feedback to the individuals, primary care, and rehabilitation officers improved return to work, improved quality of life and reduced psychological distress.

02

Conditions studied

  • Psychiatric Disorders
  • Common Mental Disorders
  • Depression
  • Anxiety
  • Somatoform Disorder

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Keywords

  • sickness absence, return to work, psychiatric examination, feedback, psychological distress, quality of life, attrition analysis, multiple imputation
03

In context

Somatoform Disorders Reclassified

60 studies on the registry are indexed under Somatoform Disorders; 5 are open to participants now.

This study's enrollment of 1,121 is above the median of 120 across 39 interventional studies indexed under Somatoform Disorders.

Browse Somatoform Disorders studies →

Lead sponsor

Region MidtJylland Denmark is the lead sponsor of 8 studies on the registry; 1 is open to participants now.

Compared within Somatoform Disorders, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Mental Disorders. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
Male
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • First sick-listing between August 30, 2004 and August 29, 2005 in six municipalities (118,000 inhabitants)

Exclusion criteria

Exclusion Criteria:

  • Unable to understand Danish and absence due to pregnancy
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
1,121 participants (actual)

Study arms

  • Active comparator
    care as usual

    Procedure: psychiatric examination and feedback

  • Experimental
    psychiatric examination and feedback

    Procedure: psychiatric examination and feedback

Interventions

  • Procedurepsychiatric examination and feedback
06

What researchers measure

Primary outcomes

  1. duration until return to work

    Included individuals were followed until payment of sickness absence compensation was ended

    Time frame: 1-2 years

Secondary outcomes

  1. Psychological distress by subscales of Hopkins Symptom Checklist Revised (SCL-90-R)

    At baseline when entering long-term sickness absence (eight weeks of continuous sickness absence) the psychological distress was measured

    Time frame: 1 year

Other outcomes

  1. Quality of life by means of Social Functioning) SF-36

    At baseline when entering long-term sickness absence (eight weeks of continuous sickness absence) the quality of life was measured

    Time frame: 1 year

07

Study locations

1 site
  • Psychiatric Research Unit west, regional Psychiatric Services West
    Herning, 7400, Denmark
08

References and documents

Publications

  • Sogaard HJ, Bech P. Psychiatric disorders in long-term sickness absence -- a population-based cross-sectional study. Scand J Public Health. 2009 Sep;37(7):682-9. doi: 10.1177/1403494809344357. Epub 2009 Aug 21. PubMed 19700479 ↗
  • Sogaard HJ, Bech P. Psychometric analysis of common mental disorders -- Screening Questionnaire (CMD-SQ) in long-term sickness absence. Scand J Public Health. 2009 Nov;37(8):855-63. doi: 10.1177/1403494809344653. Epub 2009 Aug 28. PubMed 19717571 ↗
  • Sogaard HJ. Choosing screening instrument and cut-point on screening instruments. A comparison of methods. Scand J Public Health. 2009 Nov;37(8):872-80. doi: 10.1177/1403494809344442. Epub 2009 Aug 28. PubMed 19717573 ↗
  • Sogaard HJ, Bech P. The effect on length of sickness absence by recognition of undetected psychiatric disorder in long-term sickness absence. A randomized controlled trial. Scand J Public Health. 2009 Nov;37(8):864-71. doi: 10.1177/1403494809347551. Epub 2009 Sep 7. PubMed 19736249 ↗
  • Sogaard HJ, Bech P. Predictive validity of common mental disorders screening questionnaire as a screening instrument in long term sickness absence. Scand J Public Health. 2010 Jun;38(4):375-85. doi: 10.1177/1403494809350520. Epub 2009 Oct 22. PubMed 19850649 ↗
  • Sogaard HJ, Bech P. Compensating for non-response in a study estimating the incidence of mental disorders in long-term sickness absence by a two-phased design. Scand J Public Health. 2010 Aug;38(6):625-32. doi: 10.1177/1403494810373673. Epub 2010 Jun 7. PubMed 20529969 ↗
  • Sogaard HJ, Bech P. The effect of detecting undetected common mental disorders on psychological distress and quality of life in long-term sickness absence: a randomised controlled trial. Scand J Public Health. 2010 Dec;38(8):845-56. doi: 10.1177/1403494810379292. Epub 2010 Jul 22. PubMed 20651000 ↗
09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Nov 2004, a primary completion of Oct 2005 and a completion of Dec 2010. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 8, 2013
First posted
Nov 21, 2013
Start
Nov 2004
Primary completionActual
Oct 2005
CompletionActual
Dec 2010
Last update
Nov 21, 2013
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 21, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01989728
Lead sponsor
Region MidtJylland Denmark
Responsible party
Hans Joergen Soegaard (MD, consultant, prof. ph.d., Region MidtJylland Denmark) — Principal investigator
First posted
Nov 21, 2013
Start date
Nov 2004
Primary completion
Oct 2005
Completion
Dec 2010
Last update
Nov 21, 2013

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2013. You cannot join it, but the record below documents what was studied.

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Discussion

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