Sex Transm Infect 79:28-30 doi:10.1136/sti.79.1.28
  • Original Article

Repeat chlamydia screening by mail, San Francisco

  1. P J Bloomfield1,
  2. K C Steiner2,
  3. C K Kent2,
  4. J D Klausner2
  1. 1Johns Hopkins University School of Medicine, Baltimore, MD, USA
  2. 2San Francisco Department of Public Health, San Francisco, CA, USA
  1. Correspondence to:
 Jeffrey D Klausner, MD, MPH, STD Prevention and Control Services, 1360 Mission Street, Suite 401, San Francisco, CA 94103, USA;
  • Accepted 19 August 2002


Objectives: To assess the feasibility and acceptability of home screening for repeat chlamydial infection using urine test kits sent through the mail.

Methods: A letter offering home rescreening was mailed to 399 adults who previously tested positive for chlamydia. Kits were then mailed to anyone who did not actively decline. The home testing kits contained instructions on how to collect a urine specimen and return the specimen by mail. Specimens were tested with strand displacement amplification. A short survey asked individuals their level of concern about confidentiality, safety, and privacy of mail screening.

Results: Among the 313 potential test kit recipients, 22.4% responded. Response rates were highest among homosexual and bisexual men (38.6%), people 35 years or older (34.3%), and white people (34.6%). The overall positivity rate was 3.2% (2/63). In women 18–25 years old, the positivity was 13.3% (2/15).

Conclusions: Home testing with mailed urine collection kits is feasible and an acceptable method to screen for recurrent chlamydial infection. Young women would probably benefit most because of their higher rates of reinfection and risk for sequelae.