Related Experiment Videos
Chlamydia trachomatis infections increase the risk for ectopic pregnancy: a population-based, nested case-control
Inger Johanne Bakken1, Finn Egil Skjeldestad, Svein Arne Nordbø
1Department of Epidemiology, SINTEF Health Research, N-7465 Trondheim, Norway. inger.bakken@sintef.no
Sexually Transmitted Diseases
|July 14, 2006
Summary
A history of Chlamydia trachomatis (CT) infection increases ectopic pregnancy (EP) risk. Young women diagnosed with CT face a twofold higher risk of EP, highlighting the importance of timely diagnosis and treatment.
Area of Science:
- Reproductive Health
- Infectious Diseases
- Epidemiology
Background:
- Chlamydia trachomatis (CT) is a known risk factor for ectopic pregnancy (EP).
- Previous studies establishing this link primarily used cross-sectional seroepidemiologic designs.
Purpose of the Study:
- To quantify the risk of EP associated with a CT diagnosis.
- To establish risk estimates using women with negative CT tests as the reference group.
Main Methods:
- A nested case-control study design was employed.
- Linked prospective CT laboratory data (1990-2003) with EP hospital data.
- Matched 616 CT-positive cases with controls based on birth year, age, and prior test history.
Main Results:
- A history of CT infection showed an elevated EP risk (OR, 1.4; 95% CI, 1.0-2.0).
- The association was significant in younger women (born 1970-1984) with complete CT testing history (OR, 2.1; 95% CI, 1.3-3.2).
Conclusions:
- Diagnosed CT infection is linked to a doubled risk of ectopic pregnancy.
- Younger women with a history of CT infection are particularly vulnerable to EP.