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The accuracy and patient preference for self-collected group B Streptococcus cultures
B M Mercer1, M C Taylor, J L Fricke
1Department of Obstetrics and Gynecology, University of Tennessee, Memphis, USA.
American Journal of Obstetrics and Gynecology
|October 1, 1995
Summary
Self-collected vaginal and anal cultures for group B Streptococcus (GBS) are accurate and preferred by most pregnant women. Combined self-sampling offers higher sensitivity for GBS detection compared to provider-collected samples.
Area of Science:
- Obstetrics and Gynecology
- Medical Microbiology
- Infectious Diseases
Background:
- Group B Streptococcus (GBS) is a significant cause of neonatal infection.
- Accurate detection of GBS carriage in pregnant women is crucial for prevention strategies.
- Current methods rely on provider-collected specimens, which may have limitations.
Purpose of the Study:
- To evaluate the accuracy of self-collected vaginal and anal samples for GBS detection.
- To assess patient attitudes and preferences towards GBS self-sampling during prenatal care.
Main Methods:
- Pregnant women (24-42 weeks gestation) collected distal vaginal and anal samples.
- Nurse-collected samples were obtained subsequently for comparison.
- Patient preferences for self-sampling were recorded.
Main Results:
- Combined patient-collected samples demonstrated higher sensitivity (91.7%) for GBS detection than nurse-collected samples (70.8%).
- Patient-collected samples showed higher overall accuracy (98.4%) compared to provider-collected samples (94.4%).
- A majority of women (58%) preferred self-sampling, with 90% desiring this option in the future.
Conclusions:
- Combined vaginal-anal self-sampling is a sensitive and accurate method for GBS detection.
- Patient preference strongly supports the implementation of self-sampling options.
- Offering combined self-sampling for GBS can improve detection rates and patient satisfaction.