Decreasing Chlamydial Reinfections in a Female Urban Population

Area of Science:

• Public Health
• Infectious Diseases
• Women's Health

Background:

• Chlamydia is the most common bacterial sexually transmitted infection (STI), with rates increasing significantly from 2011 to 2018.
• The STI National Strategic Plan (2021-2025) emphasizes coordinated strategies to combat STIs and reduce health disparities.

Purpose of the Study:

• To evaluate the effectiveness of institutional policy changes and clinical decision support in reducing chlamydia reinfection rates.
• To assess improvements in provider and patient treatment practices for Chlamydia trachomatis infections.

Main Methods:

• Implementation of policy changes, clinical decision support (Best Practice Advisory), and standardized treatment sets (SmartSet) in women's health clinics.
• Comparison of 6-month reinfection rates and expedited partner treatment (EPT) practices between pre- and post-intervention cohorts.

Main Results:

• A significant decrease in 6-month chlamydia reinfection rates was observed in the post-intervention cohort (6.5% vs. 12.3%).
• Directly observed therapy for primary patients increased substantially (77.3% vs. 17.5%), as did EPT prescriptions (79.5% vs. 4.3%).
• Patient-delivered partner therapy became the predominant form of EPT post-intervention.

Conclusions:

• A multifaceted, streamlined approach effectively modified provider practices for treating Chlamydia trachomatis.
• The intervention led to lower reinfection rates and increased adoption of directly observed therapy and patient-delivered partner therapy in a public women's health setting.