Mortality patterns among persons with antecedent syphilis infection
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Updated: Nov 9, 2026

Procedures for In Vitro Cultivation of Treponema pallidum, the Syphilis Spirochete
Published on: January 24, 2025
C C McLaughlin1, M C Mahoney, B B Metzger
1Bureau of Cancer Epidemiology, New York State Department of Health, Albany 12237-0683.
Background And Objectives:
Few studies have examined the patterns of death among persons with a history of syphilis infection.
Goals Of This Study:
This analysis examines the cause-specific mortality patterns among a cohort of persons diagnosed with syphilis.
Study Design:
Individuals diagnosed with serologically confirmed syphilis in New York State (excluding New York City) between 1972 and 1987 were matched to the New York State mortality files to identify the deaths among members of the cohort.
Results:
The overall observed mortality between 1973 and 1987 was generally comparable to the expected number among both men (SMR = 0.94; 95% CI = 0.87-1.02) and women (SMR = 0.88; 0.78-0.99). An excess of deaths due to all causes was observed among men between the ages of 25 and 54 (SMR = 1.74; 1.53-1.97), with the largest excess observed in the 25- to 34-year-old age group (SMR = 2.32; 1.87-2.85). Among men, excesses were noted for deaths due to AIDS-related causes. Among both genders, excess deaths were observed for possible alcohol-related causes.
Conclusion:
The unique mortality patterns of this cohort suggest the need for increased identification of and interventions directed toward high-risk behavior of individuals diagnosed with syphilis.
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