CHLAMYDIA

Sexually Transmitted Disease Surveillance 2010Division of STD Prevention

Chlamydia—Rates by Sex, United States, 1990–2010

NOTE: As of January 2000, all 50 states and the District of Columbia have regulations that require the reporting of chlamydia cases.

TotalWomenMen

Rate (per 100,000 population)

Year

0

125

250

375

500

625

750

20102008200620042002200019981996199419921990

Chlamydia—Rates by Region, United States, 2001–2010

SouthNortheastMidwestWest

Rate (per 100,000 population)

Year

0

100

200

300

400

500

2010200920082007200620052004200320022001

Chlamydia—Rates by State, United States and Outlying Areas, 2010

NOTE: The total rate of chlamydia for the United States and outlying areas (Guam, Puerto Rico, and Virgin Islands) was 422.6 per 100,000 population.

Chlamydia—Rates by County, United States, 2010

<300.0 (n = 1,962)

Rate per 100,000population

300.1–400.0 (n = 418)

>400.0 (n = 762)

Chlamydia—Rates by Age and Sex, United States, 2010

15–19

20–24

25–29

30–34

35–39

40–44

45–54

55–64

65+

Total

Men WomenRate (per 100,000 population)

Age3,700 2,960 2,220 1,480 740 0 0 740 1,480 2,220 2,960 3,700

774.3

1,187.0

598.0

309.0

153.2

91.3

39.3

233.7

2.8

10.9

3,378.2

3,407.9

1,236.1

530.9

220.1

94.7

32.8

610.6

2.1

9.3

Chlamydia—Rates by Race/Ethnicity, United States, 2001–2010

WhitesHispanicsBlacksAsians/Pacific IslandersAmerican Indians/Alaska Natives

Rate (per 100,000 population)

Year

0

300

600

900

1200

1500

2010200920082007200620052004200320022001

Chlamydia—Cases by Reporting Source and Sex, United States, 2001–2010

0

100

200

300

400

500

600

700

800

2010200920082007200620052004200320022001

STD Clinic, WomenSTD Clinic, MenNon-STD Clinic, WomenNon-STD Clinic, Men

Cases (in thousands)

Year

Chlamydia—Percentage of Reported Cases by Sex and Selected Reporting Sources,

United States, 2010

*HMO = health maintenance organization; HD = health department.NOTE: These categories represent 72.5% of cases with a known reporting source. Of all cases, 11.6% had a missing or unknown reporting source.

STD Clinic

Private Physician/HMO*

Other HD* Clinic

Family Planning Clinic

Emergency Room

Percentage

Men Women0

5

10

15

20

25

30

35

40

Chlamydia—Prevalence by Age Group and Race/Ethnicity, National Health and Nutrition

Examination Survey, 1999–2002

NOTE: Error bars indicate 95% confidence intervals.

SOURCE: Datta SD, Sternberg M, Johnson RE, Berman S, Papp JR, McQuillan G, et al. Gonorrhea and chlamydia in the United States among persons 14 to 39 years of age, 1999 to 2002. Ann Intern Med. 2007;147(2):89-96.

Non-Hispanic Blacks

Non-Hispanic Whites

Mexican-Americans

0

4

8

12

16

30–3920–2914–19

Prevalence, %

Age

Chlamydia—Median State-specific Positivity Rates Among Women Aged 15–24 Years Tested in Family

Planning Clinics, Infertility Prevention Project, United States, 1997–2010

NOTE: As of 1997, all 10 U.S. Department of Health and Human Services (HHS) regions, which represent all 50 states, the District of Columbia, and outlying areas, reported chlamydia positivity data.

0

2

4

6

8

10

Median State-Specific Positivity Rate, %

Year

20102009200820072006200520042003200220012000199919981997

Chlamydia—Positivity Among Women Aged 15–24 Years Tested in Family Planning Clinics, by State, Infertility Prevention Project, United States and

Outlying Areas, 2010

NOTE: Includes states and outlying areas that reported chlamydia positivity data on at least 500 women aged 15–24 years screened during 2010.

Chlamydia—Trends in Positivity Rates Among Women Aged 15–24 Years Tested in Family Planning Clinics, by U.S. Department of Health and Human Services (HHS)

Region, Infertility Prevention Project, 2006–2010

* 2009 percent positivity for Region VI previously published in the 2009 Surveillance report has been corrected.

Chlamydia—Percentage of Nucleic Acid Amplification Tests Used Among Women Aged 15–24 Years Tested in Family Planning Clinics, by U.S. Department of Health

and Human Services (HHS) Region, Infertility Prevention Project, 2006–2010

Region V

Percentage

Region VI

Percentage

Region VII

Percentage

Region VIII

Percentage

020406080

100

1006 07 08 090

20406080

100

1006 07 08 090

20406080

100

1006 07 08 090

20406080

100

1006 07 08 09

Region IX

Percentage

Region X

Percentage

020406080

100

1006 07 08 090

20406080

100

1006 07 08 09

Region I

Percentage

Region II

Percentage

Region III

Percentage

Region IV

Percentage

020406080

100

1006 07 08 090

20406080

100

1006 07 08 090

20406080

100

1006 07 08 090

20406080

100

1006 07 08 09