title: The utility of screening for chlamydia at 34-36 weeks gestation.
abstract: OBJECTIVE
  To determine the utility of re-testing pregnant patients<or=25 years old at 34-36 weeks gestation for Chlamydia trachomatis.
  
  
  METHODS
  After obtaining IRB approval, a chart review was conducted on patients seen at the University Ob/ Gyn office and Cabell OB/Gyn Clinic from May 2005-November 2007. Patients<or=25 years of age who had been tested for Chlamydia trachomatis (CT) at their initial prenatal visit and again at 34-36 weeks gestation were included in the study. Data was gathered regarding patient age and positive or negative results from CT testing at the initial and 34-36 week visits.
  
  
  RESULTS
  A total of 181 patients were included in the study. On the initial screen, 175 patients had a negative result and 6 a positive result. Five of these 6 patients had a negative test result when re-tested at 34-36 weeks. Out of the 175 patients who had a negative result on their initial screen, 5 had a positive result on the 34-36 week screen. A chi-squared test of statistical significance was performed on the data. P-value was >0.05 meaning that having a negative initial screen was not predictive of also having a negative result upon re-testing at 34-36 weeks.
  
  
  CONCLUSIONS
  First trimester Chlamydia trachomatis test results are not predictive of Chlamydia trachomatis status during the third trimester.
authors.affiliation: Department of Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, USA.
authors.forename: Ellie E
authors.initials: EE
authors.lastname: Hood
authors.forename: Robert C
authors.initials: RC
authors.lastname: Nerhood
mesh_terms: D000328:Adult; D002690:Chlamydia Infections / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008403:Mass Screening; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000175:diagnosis*; D011261:Pregnancy Trimester, First; D011263:Pregnancy Trimester, Third; D055815:Young Adult