Table 35. Chlamydia — Reported Cases and Rates of Reported Cases Among Men Aged 15-24 Years by Age, United States

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The table below is from Sexually Transmitted Infections Surveillance, 2023.

2019-2023

Ages Cases Rates per 100,000 Population
2019 2020 2021 2022 2023 2019 2020 2021 2022 2023
15 4,459 3,729 3,646 4,423 5,155 209.4 169.8 163.6 196.3 225.1
16 11,240 9,275 9,260 10,520 11,911 531.1 419.2 420.1 475.0 520.6
17 20,956 17,206 17,286 18,532 20,098 992.0 788.1 780.5 843.3 893.8
18 31,552 26,208 25,737 26,943 28,290 1,452.4 1,195.2 1,173.5 1,215.8 1,269.4
19 40,517 34,526 34,791 34,769 34,642 1,829.4 1,550.7 1,594.6 1,580.0 1,545.8
20 45,850 39,465 39,371 38,694 36,540 2,100.2 1,789.8 1,774.2 1,713.1 1,646.3
21 45,646 39,587 40,614 39,743 37,027 2,087.1 1,811.7 1,830.4 1,652.1 1,677.8
22 43,437 36,821 37,966 38,117 36,037 1,978.6 1,696.0 1,739.9 1,598.5 1,604.3
23 38,735 33,885 35,014 34,439 33,465 1,743.4 1,555.4 1,609.0 1,499.1 1,490.0
24 35,967 30,302 31,385 31,296 30,192 1,579.3 1,372.8 1,441.6 1,387.4 1,367.3
Total 318,359 271,004 275,070 277,476 273,357 1,459.7 1,234.2 1,250.5 1,223.2 1,219.1
NOTE: Cases and rates shown in this table include District of Columbia but exclude US territories. See Technical Notes for more information on chlamydia case reporting. This report includes data from years that coincide with the COVID-19 pandemic, which introduced uncertainty and difficulty in interpreting case data. See Impact of COVID-19 on STIs for more information.