Chlamydia — Trends in positivity among 15-44 year old women
tested in family planning clinics by HHS regions, 1988–2001
Note:  Trends adjusted for changes in laboratory test method and associated
increases in test sensitivity. No data on laboratory test method available for
Region VII in 1995 and Regions IV and V in 1996.
SOURCE: Regional Infertility Prevention Program; Office of Population Affairs; Local and State STD
Control Programs; Centers for Disease Control and Prevention