Randomized Population-Based Study on Chlamydia Trachomatis Screening

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Brief Title

Randomized Population-Based Study on Chlamydia Trachomatis Screening

Official Title

Populationbased Screening for Urogenital Chlamydia Trachomatis Infections by Use of Home-Obtained and Mailed Samples: A Randomized Study

Brief Summary

      30,000 individuals living in Aarhus County, Denmark by Oct 1997 were randomized into two
      groups. The intervention group received an invitation to be tested for urogenital Chlamydia
      trachomatis by use of home-obtained and mailed sample (9,000 individuals). The control group
      received no intervention (21,000 individuals). Outcome measures: Number of tested
      individuals, number of detected infections, number of women developing PID, ectopic pregnancy
      or infertility, number of women giving birth to a child, number of women receiving IVF
      treatment and number of men developing epididymitis.

      The hypothesis was that more individuals would be tested and treated for infections and that
      number of long term fertility complications would decline in the intervention group compared
      to control group.

Study Type


Primary Outcome

Long term infertility complications


Chlamydia Trachomatis


Screening for urogenital Chlamydia trachomatis

Study Arms / Comparison Groups

 1 Screening
Description:  Individuals receiving an invitation to be tested for urogenital Chlamydia trachomatis by use of a home-obtained and mailed sample.


* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information

Recruitment Status


Estimated Enrollment


Start Date

October 1997

Completion Date

August 2007

Primary Completion Date

February 1998

Eligibility Criteria

        Inclusion Criteria:

          -  born in 1974, 1974 or 1976 AND living in Aarhus County October 1007

        Exclusion Criteria:





21 Years - 24 Years

Accepts Healthy Volunteers

Accepts Healthy Volunteers


Berit Andersen, MD, Ph.D., , 

Location Countries


Location Countries


Administrative Informations



Organization ID


Study Sponsor

University of Aarhus


 Aarhus County, Denmark

Study Sponsor

Berit Andersen, MD, Ph.D., Principal Investigator, Aarhus University Hospital Skejby, Department of Infectious Diseases

Verification Date

January 2009