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HDS-20.2 Data Details

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HDS-20.2 Increase the proportion of adults who have had a stroke who have their low-density lipoprotein (LDL) cholesterol at or below recommended levels

About the Data

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

Data Source: 
National Health and Nutrition Examination Survey
Changed Since the Healthy People 2020 Launch: 
Yes
Measure: 
percent (age adjusted—see Comments)
Baseline (Year): 
33.4 (2005–08)
Target: 
56.1
Target-Setting Method: 
Minimal statistical significance
Target-Setting Method Justification: 
The target setting method used was Minimal Statistical Significance. The target value of 56.1 percent represents the smallest change that will result in a statistically meaningful improvement over the baseline value and would yield a realistic, probably attainable target value.
Numerator: 

Number of persons aged 20 years and over who have had a stroke who have low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL

Denominator: 

Number of persons aged 20 years and over who have had a stroke

Comparable Healthy People 2010 Objective: 
Not applicable
Questions Used to Obtain the National Baseline Data: 

    From the 2005-2006 and 2007-2008 National Health and Nutrition Examination Survey:

    [DENOMINATOR:]

    Has a doctor or other health professional ever told {you/SP} that {you/s/he} . . .had a stroke?

    1. Yes
    2. No
Data Collection Frequency: 
Periodic
Methodology Notes: 

    Most of the circulating cholesterol is found in three major lipoprotein fractions: very low-density lipoproteins (VLDL), low-density lipoproteins (LDL), and high-density lipoproteins (HDL). LDL cholesterol is calculated from measured values of total cholesterol, triglycerides, and HDL cholesterol according to the Friedewald calculation: [LDL cholesterol] = [total cholesterol] - [HDL cholesterol] - [triglycerides/5] where [triglycerides/5] is an estimate of VLDL cholesterol and all values are expressed in mg/dL.

    LDL carries most of the circulating cholesterol and, when elevated, contributes to the development of coronary atherosclerosis. LDL- cholesterol is measured to assess risk for CHD and to follow the progress of patients being treated to lower LDL cholesterol concentrations.

    Desirable levels of LDL cholesterol are below 100 mg/dL; borderline low from 100-129 mg/dL; borderline high is from 130-159 mg/dL; high is from 160-189 mg/dL; and very high LDL cholesterol is greater than or equal to 190 mg/dL.

    Age Adjustment Notes: 

    This Indicator uses Age-Adjustment Groups:

    • Total: 20-49, 50-59, 60-69, 70-79, 80+
    • Sex: 20-49, 50-59, 60-69, 70-79, 80+
    • Race/Ethnicity: 20-49, 50-59, 60-69, 70-79, 80+
    • Educational Attainment: 25-49, 50-59, 60-69, 70-79, 80+
    • Family Income (percent poverty threshold): 20-49, 50-59, 60-69, 70-79, 80+
    • Country of Birth: 20-49, 50-59, 60-69, 70-79, 80+
    • Disability Status: 20-49, 50-59, 60-69, 70-79, 80+
    • Health Insurance Status: 20-49, 50-59, 60-64
    • Marital Status: 20-49, 50-59, 60-69, 70-79, 80+
    • Veteran Status: 20-49, 50-59, 60-69, 70-79, 80+
    • Obesity Status: 20-49, 50-59, 60-69, 70-79, 80+

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, this objective became measurable. In 2017, the target was revised from 55.0% to 56.1% due to a computation error.

References

Additional resources about the objective

  1. National Center for Health Statistics. National Health and Nutrition Examination Survey, 2005-2006, Public Use Medical Conditions Questionnaire Documentation. Hyattsville, MD: Centers for Disease Control and Prevention, November 2007.