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Comparative Study
. 2011 Apr;117(4):883-885.
doi: 10.1097/AOG.0b013e3182107d47.

Urine screening for Chlamydia trachomatis during pregnancy

Scott W Roberts  1 , Jeanne S Sheffield, Don D McIntire, James M Alexander
Affiliations
Comparative Study

Urine screening for Chlamydia trachomatis during pregnancy

Scott W Roberts et al. Obstet Gynecol. 2011 Apr.

Abstract

Objective: To compare the rates of Chlamydia trachomatis detection using urine and cervical secretions from pregnant women at our institution.

Methods: A large cross-sectional sample of pregnant women (N=2,018) at 35-37 weeks of gestation were tested for C trachomatis with both endocervical and urine sampling using the Aptima Combo 2 Assay.

Results: A prevalence of 4.3% and 4.1% were found for Chlamydia endocervical and urine samples, respectively. There was no difference between the two tests by McNemar's test (-0.02%, 0.32%; P=.083). There was excellent correlation between the tests found by the κ statistic (0.982 [0.961-1.000]).

Conclusion: Urine sampling for C trachomatis is equivalent to endocervical sampling in pregnancy using the Aptima 2 Combo Assay.

Level of evidence: II.

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