Chlamydia

Sexually Transmitted Disease Surveillance 2007

Division of STD Prevention

Chlamydia — Rates: Total and by sex: United States, 1988–2007

Note: As of January 2000, all 50 states and the District of Columbia had regulations requiring the reporting of chlamydia cases.

Rate (per 100,000 population)

MenWomenTotal

0

120

240

360

480

600

1988 90 92 94 96 98 2000 02 04 06

Chlamydia — Rates by region: United States, 1998–2007

Rate (per 100,000 population)

WestMidwestNortheastSouth

0

80

160

240

320

400

1998 99 2000 01 02 03 04 05 06 07

Rate per 100,000population

Guam 481

Puerto Rico 201

Virgin Is. 320

<=300

300.1-400

>400

(n= 20)

(n= 17)

(n= 17)

VT 169NH 156MA 251RI 298CT 327NJ 247DE 408MD 412DC 1037

547

733

403354

389 362

318

458

440

254

432 328

290

296209

452

192

370

260

745

399

291

290381

484

418

346

281

413

350

266

341

612

335

445

365

224

322

294

174

352

232

Chlamydia — Rates by state: United States and outlying areas, 2007

Note: The total rate of chlamydia for the United States and outlying areas (Guam, Puerto Rico and Virgin Islands) was 368.1 per 100,000 population.

Chlamydia — Rates by county: United States, 2007

Rate per 100,000population

<=300.0 (n= 2,228)

300.1-400.0 (n= 315)

>400.0 (n= 597)

Chlamydia — Age- and sex-specific rates: United States, 2007

Men Rate (per 100,000 population) Women

Age3250 2600 1950 1300 650 0 0 650 1300 1950 2600 3250

11.8 123.010-14615.0 3004.715-19

932.9 2948.820-24518.6 1184.525-29

246.8 460.530-34129.9 188.135-3971.4 76.540-4432.3 28.545-5410.1 8.055-642.7 1.865+

190.4 544.8Total

Chlamydia — Rates by race/ethnicity: United States, 1998–2007

Rate (per 100,000 population)

American Indian/AK NativeAsian/Pacific IslanderBlackHispanicWhite

0

340

680

1020

1360

1700

1998 99 2000 01 02 03 04 05 06 07

Chlamydia — Cases by reporting source and sex: United States, 1998–2007

Cases (in thousands)

non-STD Clinic Malenon-STD Clinic FemaleSTD Clinic MaleSTD Clinic Female

0

150

300

450

600

750

1998 99 2000 01 02 03 04 05 06 07

Chlamydia — Prevalence by age group and race/ethnicity reported froma national survey, 1999–2002

Note: Error bars indicate 95% confidence intervals.

SOURCE: National Health and Nutrition Examination SurveyAnn Intern Med. 2007 Jul 17;147(2):89-96.

Prevalence

Non-Hispanic White

Non-Hispanic Black

Mexican-American

0

4

8

12

16

14-19 20-29 30-39

Chlamydia — Median state-specific positivity among 15- to 24-year-old womentested in family planning clinics: United States, 1997–2007

Note: As of 1997, all 10 Health and Human Services (HHS) regions, representing all 50 states, the District of Columbia, and outlying areas, reported chlamydia positivity data.

SOURCE: Chlamydia Prevalence Monitoring Project (Regional Infertility Prevention Projects); Office of Population Affairs; Local and State STD Control Programs; Centers for Disease Control and Prevention

Median state-specific positivity rate

0

2

4

6

8

10

1997 98 99 2000 01 02 03 04 05 06 07

Positivity (%)

Puerto Rico 7.7

Virgin Is. 16.8

See*

<5.0

5.0-9.9

>=10.0

(n= 1)

(n= 6)

(n= 39)

(n= 7)

VT 3.5NH 3.8MA 4.5RI 5.7CT 6.8NJ 7.7DE 6.4MD 5.7DC

12.7

5.2

8.3 8.2

6.2 6.9

8.3

12.3

8.4

5.4

7.2 8.0

5.8

6.45.0

8.1

6.1

7.2

6.1

13.8

7.2

5.7

6.96.9

8.3

4.8

7.8

8.0

8.0

6.9

4.7

5.3

11.3

6.5

6.5

13.8

12.87.5

7.1

2.9

8.2

6.1

Chlamydia — Positivity among 15- to 24-year-old women tested in family planning clinics by state: United States and outlying areas, 2007

*Data not available in 2007.Note: Includes states and outlying areas that reported chlamydia positivity data on at least 500 women aged 15-24 years screened during 2007.

SOURCE: Chlamydia Prevalence Monitoring Project (Regional Infertility Prevention Projects); Office of Population Affairs; Local and State STD Control Programs; Centers for Disease Control and Prevention

Chlamydia — Trends in positivity among 15- to 24-year-old women tested in family planning clinics by HHS region, 2003–2007

SOURCE: Chlamydia Prevalence Monitoring Project (Regional Infertility Prevention Projects); Office of Population Affairs; Local and State STD Control Programs; Centers for Disease Control and Prevention

Region I

Region II

Region III

Region IV

Region V

Region VIRegion VII

Region VIII

Region IX

Region X

4.7

03

4.6

04

4.7

05

4.7

06

4.8

07

7.4

03

7.1

04

5.7

05

5.6

06

5.9

07

5.6

03

6.0

04

5.8

05

5.4

06

5.5

07

6.2

03

8.4

04

8.8

05

9.0

06

9.6

07

7.3

03

7.5

04

7.7

05

7.6

06

7.6

07

7.3

03

7.4

04

7.4

05

7.9

06

8.8

07

5.5

03

5.8

04

5.8

05

6.5

06

6.5

07

5.9

03

6.3

04

6.3

05

7.2

06

7.3

07

6.5

03

6.7

04

6.4

05

6.8

06

7.3

07

5.8

03

5.9

04

5.6

05

5.7

06

5.8

07

IV

VIIIX

IIIX

III

VI

VVIII

Chlamydia — Percent of tests that were nucleic acid amplification tests (NAATs) in family planning clinics among 15- to 24-year-old women by HHS region, 2003–

2007

SOURCE: Chlamydia Prevalence Monitoring Project (Regional Infertility Prevention Projects); Office of Population Affairs; Local and State STD Control Programs; Centers for Disease Control and Prevention

Region I

Percent

020406080

100

03 04 05 06 07Region II

Percent

020406080

100

03 04 05 06 07Region III

Percent

020406080

100

03 04 05 06 07Region IV

Percent

020406080

100

03 04 05 06 07

Region V

Percent

020406080

100

03 04 05 06 07Region VI

Percent

020406080

100

03 04 05 06 07Region VII

Percent

020406080

100

03 04 05 06 07Region VIII

Percent

020406080

100

03 04 05 06 07

Region IX

Percent

020406080

100

03 04 05 06 07Region X

Percent

020406080

100

03 04 05 06 07