Increased sexually transmitted infection incidence in a low risk population: identifying the risk factors

Frances Shiely1, Mary Horgan, Kevin Hayes

  • 1Department of Epidemiology and Public Health, University College Cork, Cork, Ireland. f.shiely@ucc.ie

Abstract

Insights

Sexually transmitted infections (STIs) are rising in Ireland. Key risk factors include age and inconsistent condom use, not multiple partners, highlighting the need for targeted interventions.

Area of Science:

  • Public Health
  • Epidemiology
  • Infectious Diseases

Background:

  • Ireland experienced over a 300% increase in sexually transmitted infections (STIs) between 1994 and 2006.
  • This reported increase may underestimate the true prevalence of STIs.
  • The study aimed to identify risk factors for STI diagnosis amid rising incidence.

Purpose of the Study:

  • To determine the primary risk factors associated with sexually transmitted infection (STI) diagnosis.
  • To analyze demographic and behavioral data from STI clinics to understand risk profiles.

Main Methods:

  • Utilized diagnostic, demographic, and behavioral data from three STI clinics.
  • Data collection spanned from January 1999 to December 2006.
  • Multivariable logistic regression models were employed to identify risk factors.

Main Results:

  • Age, smoking, and inconsistent condom use emerged as dominant risk factors for STI diagnosis.
  • Younger age groups, specifically males aged 20-24 and females under 20, faced the highest risk.
  • Having three or more sexual partners was not significantly associated with increased STI risk; consistent condom use was low (≤13.3%).

Conclusions:

  • Age, condom use, and sexual partner numbers are significant factors in STI diagnosis.
  • Contrary to global trends, multiple partners did not elevate STI incidence in this population.
  • Age-specific behavioral interventions promoting condom use and policy changes (e.g., reduced condom taxation) are recommended to curb STI rates.

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