Skip to main content
Infectious Diseases in Obstetrics and Gynecology logoLink to Infectious Diseases in Obstetrics and Gynecology
. 1994;1(4):173–176. doi: 10.1155/S1064744994000037

Correlation Between the Clinical Diagnosis of Bacterial Vaginosis and the Results of a Proline Aminopeptidase Assay

George H Nelson 1,2,✉, Janice L Bacon 1
PMCID: PMC2364341  PMID: 18475340

Abstract

Objective: The object of this study was to develop a simple and inexpensive test for detection of bacterial vaginosis (BV) in pregnant patients and to test its accuracy in a clinic population.

Methods: We developed a modified proline aminopeptidase (PAMP) assay to detect BV and compared the results of the assay with the clinical diagnosis of BV.

Results: The results of the PAMP assay in 55 asymptomatic and 50 symptomatic subjects significantly correlated with a clinical diagnosis of BV. The prevalence of BV in the asymptomatic population was 42% (PAMP assay) and 38% (clinical diagnosis). In the symptomatic population, it was 50% (PAMP assay) and 54% (clinical diagnosis). The sensitivity, specificity, accuracy, positive predictive value (PPV), and negative predictive value (NPV) of the PAMP assay were 86, 85, 86, 78, and 91%, respectively, in asymptomatic patients and 89, 96, 92, 96, and 88%, respectively, in symptomatic patients.

Conclusions: The modified PAMP assay, which we describe, met our goals for simplicity, cost, and accuracy. We feel it could be best used as a screening test for BV in asymptomatic pregnant patients.

Full Text

The Full Text of this article is available as a PDF (298.3 KB).

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Eschenbach D. A., Hillier S., Critchlow C., Stevens C., DeRouen T., Holmes K. K. Diagnosis and clinical manifestations of bacterial vaginosis. Am J Obstet Gynecol. 1988 Apr;158(4):819–828. doi: 10.1016/0002-9378(88)90078-6. [DOI] [PubMed] [Google Scholar]
  2. Gravett M. G., Hummel D., Eschenbach D. A., Holmes K. K. Preterm labor associated with subclinical amniotic fluid infection and with bacterial vaginosis. Obstet Gynecol. 1986 Feb;67(2):229–237. doi: 10.1097/00006250-198602000-00013. [DOI] [PubMed] [Google Scholar]
  3. Gravett M. G., Nelson H. P., DeRouen T., Critchlow C., Eschenbach D. A., Holmes K. K. Independent associations of bacterial vaginosis and Chlamydia trachomatis infection with adverse pregnancy outcome. JAMA. 1986 Oct 10;256(14):1899–1903. [PubMed] [Google Scholar]
  4. Martius J., Krohn M. A., Hillier S. L., Stamm W. E., Holmes K. K., Eschenbach D. A. Relationships of vaginal Lactobacillus species, cervical Chlamydia trachomatis, and bacterial vaginosis to preterm birth. Obstet Gynecol. 1988 Jan;71(1):89–95. [PubMed] [Google Scholar]
  5. Riduan J. M., Hillier S. L., Utomo B., Wiknjosastro G., Linnan M., Kandun N. Bacterial vaginosis and prematurity in Indonesia: association in early and late pregnancy. Am J Obstet Gynecol. 1993 Jul;169(1):175–178. doi: 10.1016/0002-9378(93)90157-e. [DOI] [PubMed] [Google Scholar]
  6. Schoonmaker J. N., Lunt B. D., Lawellin D. W., French J. I., Hillier S. L., McGregor J. A. A new proline aminopeptidase assay for diagnosis of bacterial vaginosis. Am J Obstet Gynecol. 1991 Sep;165(3):737–742. doi: 10.1016/0002-9378(91)90320-q. [DOI] [PubMed] [Google Scholar]
  7. Thomason J. L., Gelbart S. M., Wilcoski L. M., Peterson A. K., Jilly B. J., Hamilton P. R. Proline aminopeptidase activity as a rapid diagnostic test to confirm bacterial vaginosis. Obstet Gynecol. 1988 Apr;71(4):607–611. [PubMed] [Google Scholar]

Articles from Infectious Diseases in Obstetrics and Gynecology are provided here courtesy of Wiley

RESOURCES