Diaphragm and Lubricant Gel for Preventing Cervical STIs
Author Information
Author(s): Ramjee Gita, van der Straten Ariane, Chipato Tsungai, de Bruyn Guy, Blanchard Kelly, Shiboski Stephen, Cheng Helen, Montgomery Elizabeth, Padian Nancy
Primary Institution: Medical Research Council, Durban, South Africa
Hypothesis
Does the use of a diaphragm and lubricant gel reduce the incidence of chlamydial and gonococcal infections compared to condoms alone?
Conclusion
The study found no significant difference in the rate of chlamydial or gonococcal infections between the diaphragm and lubricant gel group and the control group, but consistent use of the diaphragm may reduce gonococcal infections.
Supporting Evidence
- The study included 5045 women and followed them for an average of 21 months.
- There were 471 first chlamydia infections and 192 first gonococcal infections recorded during the study.
- The retention rate of participants was over 93% throughout the study.
Takeaway
The study tested if a diaphragm and lubricant gel could help prevent certain infections in women, but it didn't show a clear benefit over just using condoms.
Methodology
The study was a randomized controlled trial involving 5045 sexually active women, comparing the incidence of STIs between those using a diaphragm with lubricant gel and those using condoms only.
Potential Biases
There may be bias in self-reported adherence to diaphragm use.
Limitations
The study did not account for potential confounding factors such as varying rates of condom use across study arms.
Participant Demographics
Participants were sexually active women aged 18-49, primarily under 35 years old, recruited from Southern Africa.
Statistical Information
P-Value
p=0.25 for CT; p=0.90 for GC; p=0.02 for per-protocol analysis of GC
Confidence Interval
95% CI: 0.93–1.33 for CT; 95% CI: 0.74–1.30 for GC; 95% CI: 0.41–0.91 for per-protocol analysis of GC
Statistical Significance
p=0.25 for CT; p=0.90 for GC; p=0.02 for per-protocol analysis of GC
Digital Object Identifier (DOI)
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