Clinical Infection and Immunity, ISSN 2371-4972 print, 2371-4980 online, Open Access
Article copyright, the authors; Journal compilation copyright, Clin Infect Immun and Elmer Press Inc
Journal website https://www.ciijournal.org

Original Article

Volume 000, Number 000, December 2024, pages 000-000

Epidemiological Trends of Syphilis Infections in Japan and South Korea From 2011 to 2019

Figures

Figure 1.
Figure 1. Trends in syphilis cases in Japan and South Korea from 2011 to 2019. Lines represent the number of reported cases in Japan (green) and South Korea (purple).
Figure 2.
Figure 2. Trends in syphilis cases of male and female in Japan (a) and South Korea (b), from 2011 to 2019. Lines represent the number of reported cases of male (blue) and female (red) in both countries.
Figure 3.
Figure 3. Trends in syphilis incidence rate of Japan and South Korea (2011 - 2019). Lines represent incidence rate of Japan (green) and South Korea (purple).
Figure 4.
Figure 4. Trends in syphilis incidence rate of male and female in Japan (a) and South Korea (b) (2011 - 2019). Lines represent the number of reported cases of Japan (green) and South Korea (purple).
Figure 5.
Figure 5. Trends in age-specific syphilis cases of male in Japan (2011 - 2019). The number of syphilis cases for each year is shown for different age groups. The statistical analysis was performed with Kruskal-Wallis test for a global assessment among the age-specific groups, followed by Bonferroni-adjusted pairwise comparisons, with a P value of 0.05 as the significance level. There were significant differences between 10 - 19 years and 20 - 29 years (P = 0.001), 10 - 19 years and 30 - 39 years (P = 0.009), 10 - 19 years and 40 - 49 years (P = 0.001), 10 - 19 years and 50 - 59 years (P = 0.006), and 30 - 39 years and ≥ 70 years (P = 0.009). The asterisks indicate the significant intergroup difference with the P value of less than 0.05. yrs: years.
Figure 6.
Figure 6. Trends in age-specific syphilis cases of male in South Korea (2011 - 2019). The number of syphilis cases for each year is shown for different age groups. The statistical analysis was performed with Kruskal-Wallis test for a global assessment among the age-specific groups, followed by Bonferroni-adjusted pairwise comparisons, with a P value of 0.05 as the significance level. There were significant differences between 10 - 19 years and 20 - 29 years (P = 0.001), 10 - 19 years and 30 - 39 years (P = 0.001), 10 - 19 years and 40 - 49 years (P = 0.002), 20 - 29 years and 60 - 69 years (P = 0.001), 20 - 29 years and ≥ 70 years (P = 0.009), 30 - 39 years and 60 - 69 years (P = 0.01), 30 - 39 years and ≥ 70 years (P = 0.009), 40 - 49 years and 60 - 69 years (P = 0.01), 40 - 49 years and ≥ 70 years (P = 0.009), and 50 - 59 years and ≥ 70 years (P = 0.03). The asterisks indicate the significant intergroup difference with the P value of less than 0.05. yrs: years.
Figure 7.
Figure 7. Trends in age-specific syphilis cases of female in Japan (2011 - 2019). The number of syphilis cases for each year is shown for different age groups. The statistical analysis was performed with Kruskal-Wallis test for a global assessment among the age-specific groups, followed by Bonferroni-adjusted pairwise comparisons, with a P value of 0.05 as the significance level. There were significant differences between 20 - 29 years and 60 - 69 years (P = 0.009), and 30 - 39 years and 60 - 69 years (P = 0.009). The asterisks indicate the significant intergroup difference with the P value of less than 0.05. yrs: years.
Figure 8.
Figure 8. Trends in age-specific syphilis cases of female in South Korea (2011 - 2019). The number of syphilis cases for each year is shown for different age groups. The statistical analysis was performed with Kruskal-Wallis test for a global assessment among the age-specific groups, followed by Bonferroni-adjusted pairwise comparisons, with a P value of 0.05 as the significance level. There were significant differences between 10 - 19 years and 20 - 29 years (P = 0.001), 10 - 19 years and 30 - 39 years (P = 0.01), 20 - 29 years and 30 - 39 years (P = 0.002), 20 - 29 years and 40 - 49 years (P = 0.009), 20 - 29 years and 50 - 59 years (P = 0.001), 20 - 29 years and 60 - 69 years (P = 0.009), 20 - 29 years and ≥ 70 years (P = 0.009), 30 - 39 years and 40 - 49 years (P = 0.02), 30 - 39 years and 50 - 59 years (P = 0.001), 30 - 39 years and 60 - 69 years (P = 0.009), and 30 - 39 years and ≥ 70 years (P = 0.009). The asterisks indicate the significant intergroup difference with the P value of less than 0.05. yrs: years.
Figure 9.
Figure 9. Trends in congenital syphilis cases in Japan and South Korea (2011 - 2019). Lines represent number of cases of Japan (green) and South Korea (purple).