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STD-1.1 Data Details

STD-1.1 Reduce the proportion of females aged 15 to 24 years with Chlamydia trachomatis infections attending family planning clinics

About the Data

Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.

National Data Source
STD Surveillance System (STDSS); Centers for Disease Control and Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (CDC/NCHHSTP)
Changed Since the Healthy People 2020 Launch
Baseline (Year)
7.4 (2008)
Target-Setting Method
10 percent improvement
Number of positive tests among women aged 15 to 24 years who attended family planning clinics in the past 12 months
Number tests administered (unsatisfactory tests, indeterminate or inconclusive results, or inadequate specimens are excluded) among women aged 15 to 24 years who attended family planning clinics in the past 12 months
Comparable Healthy People 2010 Objective
Retained from HP2010 objective
Methodology Notes

Data are collected from regional infertility prevention infrastructure laboratory reports. This measure tracks only tests that are specific for Chlamydia trachomatis infection. The number of positive cases is based on test results from persons routinely screened. Routine screening is defined by each clinic. In some clinics, all patients are universally screened. In others, routine screening is done selectively based on clinical findings or behavioral risk factors.

Chlamydia positivity data on females screened in family planning clinics are included when the number of females aged 15-24 years tested from a state was greater than or equal to 500. The baseline measure is calculated median state-specific positivity. Medians are reported when at least 20 states met the inclusion criteria.


Additional resources about the objective.

  1. Centers for Disease Control and Prevention (CDC). Case definitions for infectious conditions under public health surveillance. Morbidity and Mortality Weekly Report 46 (RR-10): 1997.