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CKD-2 Data Details

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CKD-2 Increase the proportion of persons with chronic kidney disease (CKD) who know they have impaired renal function

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: 
percent (age adjusted—see Comments)
Baseline (Year): 
9.4 (2001–06)
Target-Setting Method: 
4 percentage point improvement
Target-Setting Method Justification: 
The baseline awareness among adults aged 45 years and older with chronic kidney disease (stages 1 through 4) was 9.4 percent (2001-2006). Clinically, a 4-percentage point improvement increase is reasonable.

Number of persons aged 45 years and over with chronic kidney disease stages 1-4, who report having been told by a health professional that they have impaired kidneys


Number of persons aged 45 years and over with chronic kidney disease stages 1-4

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

    From the 2001-2006 National Health and Nutrition Examination Survey:


    {Have you/Has SP} ever been told by a doctor or other health professional that {you/s/he} had weak or failing kidneys? Do not include kidney stones, bladder infections, or incontinence.

    1. Yes
    2. No
    3. Don't know
    4. Refused
Data Collection Frequency: 
Methodology Notes: 

    Chronic kidney disease (CKD) stages 1-4 are defined as a urinary albumin/creatinine ratio (ACR) >30 mg/g (single measurement) or estimated glomerular filtration rate (eGFR) between 15 and 59 ml/min/1.73 m². The eGFR is computed using the Modification of Diet in Renal Disease (MDRD) study equation.

    Persons were considered to be aware that they have impaired renal function if they answered "yes" to the awareness question. Persons who did not respond to the awareness question (responses of "refused" and "unknown") were excluded from the analysis.

    Age Adjustment Notes: 

    This Indicator uses Age-Adjustment Groups:

    • Total: 45-64, 65+
    • Sex: 45-64, 65+
    • Race/Ethnicity: 45-64, 65+
    • Educational Attainment: 45-64, 65+
    • Family Income (percent poverty threshold): 45-64, 65+
    • Country of Birth: 45-64, 65+
    • Disability Status: 45-64, 65+
    • Marital Status: 45-64, 65+
    • Veteran Status: 45-64, 65+
    • Obesity Status: 45-64, 65+

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 original 1999-2004 baseline of 7.3% was replaced with 2001-2006 estimate (9.4%) to be more consistent with the baselines of other CKD objectives. The target was adjusted from 11.3% to 13.4% to reflect the revised baseline using the original target-setting method.


Additional resources about the objective

  1. Levey AS, Bosch JP, Lewis JB, Greene T, Rogers N, Roth D. A more accurate method to estimate glomerular filtration rate from serum creatinine: a new prediction equation. Modification of Diet in Renal Disease Study Group. Ann Intern Med. 1999; 130:461-70.