Chlamydia trachomatis Infections in a Gynecological Hospital in Athens, Greece: A Three-Year Retrospective Study

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Chlamydia is the most common sexually transmitted infection (STI) worldwide. In 2020, the global prevalence was estimated to be 4.0% among women and 2.5% among men aged 15 to 49 years. In more than 80% of cases, the infection is asymptomatic, thereby increasing the risk of subsequent infections. Complications in women can include chronic pain, pelvic inflammatory disease, and an increased risk of ectopic pregnancies. Chlamydia trachomatis (CT) infections can be diagnosed using several techniques, including cell culture, immunofluorescence, enzyme immunoassays, and polymerase chain reaction (PCR). PCR is regarded as the gold standard for screening and detection of CT. We conducted a three-year retrospective study from January 2022 to December 2024, collecting 4241 cervicovaginal swab samples from outpatient gynecology patients. The overall prevalence of CT in our study was 2.02%. An increase in CT detection during the study period was observed: from 24 cases (1.7%) in 2022 to 30 cases (2%; p = 0.64) in 2023 and 32 cases (2.35%; p = 0.26) in 2024. The highest proportion of cases was observed in the 20–24 and 25–34 age groups. Notably, 7 out of 10 cases were asymptomatic. Risk factors for chlamydial infections include behavioral factors, such as having multiple sexual partners and engaging in risky sexual practices, as well as social and lifestyle influences.

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