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. 1993 Apr;83(4):520–524. doi: 10.2105/ajph.83.4.520

A method for identifying persons at high risk for sexually transmitted infections: opportunity for targeting intervention.

C A Richert 1, T A Peterman 1, A A Zaidi 1, R L Ransom 1, J E Wroten 1, J J Witte 1
PMCID: PMC1694484  PMID: 8460727

Abstract

OBJECTIVES. The purpose of this study was to develop a method to identify persons at high risk for acquiring new sexually transmitted infections. METHODS. Computerized medical records from sexually transmitted disease clinics in Dade County, Florida, were used to conduct a retrospective cohort study. For all patients who visited in 1987, risk factors were identified for returning to the clinics within a year with a new sexually transmitted infection. Predictor variables were derived from the index visit and any visits in the year prior to the index visit. Logistic regression was used to develop a model that was applied to all patients who attended in 1989. RESULTS. Of 24,439 patients attending in 1987, 18.5% returned within a year with a new infection. Return rates were highest for 15- to 19-year-old Black males (31.8%). The highest odds ratios for returning were a diagnosis or treatment for an infection in the previous year and a diagnosis or treatment for infection at the index visit. The patients predicted to be at highest risk had a 39% return rate. There were as many new infections among the 2893 patients at highest risk as there were among the 13,326 patients at lowest risk. CONCLUSIONS. We developed a model that identifies persons at very high risk for sexually transmitted infection. These persons should be targeted for intensive intervention to reduce their risk.

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Selected References

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