Skip Navigation

AH-5.1 Data Details

AH-5.1 Increase the proportion of students who graduate with a regular diploma 4 years after starting 9th grade Leading Health Indicators

Leading Health Indicators are a subset of Healthy People 2020 objectives selected to communicate high-priority health issues.

About the Data

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

National Data Source
Common Core of Data (CCD); Department of Education, National Center for Education Statistics (ED/NCES)
Changed Since the Healthy People 2020 Launch
Baseline (Year)
74.9 (2007-2008)
Target-Setting Method
10 percent improvement
Number of students who received high school diplomas-4 years after starting ninth grade in public schools
For a class that started 9th grade four years prior to the year in which high school diplomas are awarded, the mean (average) of the sum of the number of students while it was in 8th grade, while it was in 9th grade, and while it was in 10th grade
Data Collection Frequency
Comparable Healthy People 2010 Objective
Not applicable
Leading Health Indicator
Social Determinants
Methodology Notes

The Averaged Freshman Graduation Rate (AFGR) methodology is used for this measure. The AFGR is an estimate of the percentage of an entering freshman class graduating in 4 years. The incoming freshman class size is estimated by summing the enrollment in 8th grade in year 1, 9th grade for the following year, and 10th grade for the year after, and dividing by three. This averaging is intended to account for prior year retentions in 9th grade. For 2007–08, the AFGR equals the total number of diploma recipients in 2007-08 divided by the average membership of the 8th-grade class in 2003-04, the 9th grade class in 2004-05, and the 10th grade class in 2005-06.

Trend Issues
Estimates include any of the 50 states and the District of Columbia that reported all data elements. Exceptions from the 2007-08 school year were: data for the total line do not include South Carolina and estimates for race/ethnicity do not include data from Delaware or Nevada. Exceptions for the 2008-09 school year were: data for the total line were imputed for Nevada and California based on data from the previous school year and estimates for race/ethnicity do not include data from Nevada or Maine.


Additional resources about the objective.

  1. National Center for Education Statistics Common Core of Data