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IID-2 Data Details

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IID-2 Reduce early onset group B streptococcal disease

About the Data

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

Data Source: 
Active Bacterial Core Surveillance
National Vital Statistics System-Natality
Changed Since the Healthy People 2020 Launch: 
per 1,000
Baseline (Year): 
0.30 (2008)
Target-Setting Method: 
10 percent improvement

Number of newborns aged 0 to 6 days with a newly reported laboratory-confirmed case of early-onset group B streptococcal disease


Number of live births

Comparable Healthy People 2010 Objective: 
Retained from HP2010 objective
Data Collection Frequency: 
Methodology Notes: 

    A laboratory-confirmed case of group B Streptococcus is defined as either the isolation of group B Streptococcus from cerebrospinal fluid or a positive culture of group B Streptococcus from a different normally sterile site (blood, pleural fluid, etc.) in a newborn aged 0 to 6 days in the surveillance area.

    The denominator for the most recent data year is based on live births in the study area for the year prior to the data year. For all other data years, the denominator is based on the live births in the study area for that data year. Missing race data was multiply imputed and surveillance rates were standardized to the racial distribution of the live birth estimates using vital statistics data from the CDC National Center for Health Statistics (NCHS).

Caveats and Limitations: 
ABCs Areas California (3 county San Francisco Bay area); Colorado (children

Revision History

Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.

Description of Changes Since the Healthy People 2020 Launch: 
In 2015, the 2010 data were revised from 0.30 per 1,000 to 0.26 per 1,000 to update the denominator from the 2009 to the 2010 number of live births in the study area.