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May 20, 2026Sexually Transmitted Diseases

Utilization and performance of a rapid treponemal antibody test for diagnosis of syphilis in a high-risk population at an urban county hospital

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Authors

CHCarissa K. HarvestRTRebecca S. TregerTMTimothy W. Menza

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Overview

Randomized trial demonstrates rapid syphilis screening effectiveness in urban high-risk patients, suggesting timely interventions are achievable.

Key Points

  • This study aims to evaluate the effectiveness and performance of a rapid treponemal antibody test for diagnosing syphilis in a high-risk population.
  • Conducted from March 2023 to February 2024, testing 449 patients with 461 rapid syphilis tests.
  • Compared results of rapid tests with a conventional reverse algorithm involving multiple testing methods.
  • Examined patient demographics and risk factors, including substance use disorder and unstable housing.
  • Overall RST sensitivity was 52.2% and specificity 98.2%; after excluding patients with previous syphilis, sensitivity rose to 83.3%.
  • RST had a negative predictive value of 99.0%, indicating it was highly effective in ruling out the disease.
  • Median turnaround time for RST was significantly faster at 1.6 hours versus 197.8 hours for traditional methods.

Cite This Study

Harvest et al. (2026) studied this question.

synapsesocial.com/papers/6a0d50cdf03e14405aa9cd8dhttps://doi.org/10.1097/olq.0000000000002352
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