Abstract
BackgroundThe rates of newly diagnosed cases of sexually transmitted diseases, including genital chlamydial infection and gonorrhea, are important for prevention and control of these diseases. However, nationwide rates are not reported in Japan.MethodsWe used the number of cases of sexually transmitted diseases reported by nationwide sentinel surveillance in 2015, together with the number of all disease outpatients in September 2014 at all medical institutions, drawn from the Survey of Medical Institutions of Japan. The number of cases of sexually transmitted diseases in the total population was estimated using the ratio estimation method with the number of all disease outpatients as auxiliary information. This method is currently used for estimating influenza cases from sentinel surveillance data in Japan.ResultsThe estimated number of newly diagnosed cases per 100,000 population in 2015 in Japan was 244 (95% confidence interval 211–277) for genital chlamydial infection, 87 (95% confidence interval 74–100) for genital herpes, 61 (95% confidence interval 29–93) for condyloma acuminatum, and 89 (95% confidence interval 64–113) for gonorrhea.ConclusionWe estimated the nationwide number of newly diagnosed cases of sexually transmitted diseases in Japan from sentinel surveillance data. This provides useful information for public health policy-making.
Highlights
The rates of newly diagnosed cases of sexually transmitted diseases, including genital chlamydial infection and gonorrhea, are important for prevention and control of these diseases
Reports of recent trends from sentinel surveillance data suggest that the number of males newly diagnosed with condyloma acuminatum has Kawado et al BMC Infectious Diseases (2020) 20:77 slightly increased, the number of females newly diagnosed with genial chlamydial infection and condyloma acuminatum has slightly decreased, and the numbers newly diagnosed with other Sexually transmitted disease (STD) were nearly constant [10, 11]
Our study investigated the nationwide incidence of STDs in Japan using sentinel surveillance data for infectious diseases
Summary
The rates of newly diagnosed cases of sexually transmitted diseases, including genital chlamydial infection and gonorrhea, are important for prevention and control of these diseases. The rates of new diagnoses of STDs including genital chlamydial infection and gonorrhea in the total population have been shown in many countries. The numbers of cases newly diagnosed with influenza and pediatric diseases in the total population have been estimated using sentinel surveillance data, but the new cases of STDs have not yet been estimated [8, 12, 13].
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