Strong correlation between urine and vaginal swab samples for bacterial vaginosis
Autor: | Fazana Dessai, Partson Tinarwo, Meleshni Naicker, Jennifer Giandhari, Deshanta Naicker, Nathlee Abbai, Veron Ramsuran |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
south africa
medicine.medical_specialty ved/biology.organism_classification_rank.species swab Atopobium vaginae Urine Infectious and parasitic diseases RC109-216 medicine.disease_cause Prevotella bivia Correlation Medicine Gardnerella vaginalis bv Digital polymerase chain reaction g. vaginalis Original Research Gynecology Lactobacillus crispatus biology business.industry ved/biology ddpcr medicine.disease biology.organism_classification urine Bacterial vaginosis business pregnant women bacterial vaginosis |
Zdroj: | Southern African Journal of Infectious Diseases, Vol 36, Iss 1, Pp e1-e8 (2021) Southern African Journal of Infectious Diseases |
ISSN: | 2313-1810 2312-0053 |
Popis: | Background: Vaginal swabs have been traditionally used for the diagnosis of bacterial vaginosis (BV). Currently, there are limited studies that have investigated the use of other sample types other than vaginal swabs for the detection of BV from South African populations. This study investigated whether urine can be used for the detection of BV-associated microorganisms in South African pregnant women. Methods: One-hundred self-collected vaginal swabs and urine samples were obtained from women presenting for antenatal care at King Edward VIII Hospital in Durban. The BD MAX™ vaginal panel assay was used for diagnosing BV and droplet digital polymerase chain reaction was used to quantify Gardnerella vaginalis, Prevotella bivia, Atopobium vaginae and Lactobacillus crispatus . The absolute counts were determined on the QX200 Droplet Reader (Bio-Rad) using the QuantaSoft Software. Data analysis was performed with statistical computing software called R, version 3.6.1. Results: Median copy numbers obtained for G. vaginalis and P. bivia across urine and swabs in BV-positive samples were not significantly different ( p = 0.134 and p = 0.652, respectively). This was confirmed by the correlation analysis that showed a good correlation between the two sample types ( G. vaginalis [ r = 0.63] and P. bivia [ r = 0.50]). However, the data obtained for A. vaginae differed, and a weak correlation between urine and swabs was observed ( r = 0.21). Bacterial vaginosis-negative samples had no significant difference in median copy numbers for L. crispatus across the urine and swabs ( p = 0.062), and a good correlation between the sample types was noted ( r = 0.71). Conclusion: This study highlights the appropriateness of urine for the detection of microorganisms associated with BV. |
Databáze: | OpenAIRE |
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