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Published on: October 12, 2018
Exploring the relationship between sexually transmitted diseases and HIV acquisition by using different study designs
Nicola M Zetola1, Kyle T Bernstein, Ernest Wong
1Division of Infectious Diseases, University of California, San Francisco, San Francisco, CA, USA.
Sexually transmitted diseases (STDs) significantly increase the risk of acquiring human immunodeficiency virus (HIV) infection, especially rectal gonorrhea and syphilis. Multiple study designs are needed to understand this complex relationship and control for confounding factors.
Area of Science:
- Public Health
- Epidemiology
- Infectious Diseases
Background:
- Sexually transmitted diseases (STDs) are hypothesized to increase HIV acquisition risk.
- Previous studies faced challenges in establishing temporal relationships and controlling for confounders.
- This study explores various designs to clarify the STD-HIV acquisition link.
Purpose of the Study:
- To investigate the association between STDs and HIV acquisition.
- To overcome methodological limitations of prior research on this topic.
- To determine if STDs are independent correlates of acute HIV infection.
Main Methods:
- Employed matched case-control, infected analysis, and case-crossover designs.
- Included acutely HIV-infected patients as cases.
- Utilized t tests and logistic regression for statistical analysis.
Main Results:
- 350 HIV infections diagnosed among 13,662 MSM tested; 36 (10.3%) were acute.
- Higher odds of STDs observed within 12 and 3 months prior to HIV diagnosis across all study designs.
- Concurrent rectal gonorrhea and syphilis showed significantly higher odds of acute HIV infection.
Conclusions:
- Acute HIV infection is associated with recent or concurrent STDs, particularly rectal gonorrhea.
- No single study design can fully account for all confounders in STD-HIV research.
- Complementary study designs are essential for a comprehensive understanding of the STD-HIV relationship.
Related Concept Videos
Sexually Transmitted Infections
Study Designs in Epidemiology
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Amebiasis
Genital Herpes
Introduction to Epidemiology
Retrovirus Life Cycles

