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U.S. Department of Health and Human Services Office of Disease Prevention and Health Promotion

Increase the proportion of adults with chronic kidney disease who know they have it — CKD‑02 Data Methodology and Measurement

On this page:  About the National Data  |  Methodology  |  History

About the National Data

Data

Data Source:  National Health and Nutrition Examination Survey (NHANES), CDC/NCHS

Baseline: 7.3 percent of adults aged 18 years and over with chronic kidney disease knew they had reduced kidney function in 2013-16

Target: 10.1 percent

Numerator
Number of adults aged 18 years and over with chronic kidney disease stages 1–4 who report having been told by a health care professional that they have weak or failing kidneys.
Denominator
Number of adults aged 18 years and over with chronic kidney disease stages 1–4.
Target-setting method
Percentage point improvement
Target-setting method details
Percentage point improvement from the baseline using Cohen's h effect size of 0.10.
1
Target-setting method justification
Trend data were not available for this objective. A percentage point improvement was calculated using Cohen's h effect size of 0.1. This method was used because the target is a statistically significant improvement from the baseline. National efforts such as the Department of Health and Human Services' (HHS) initiative, Advancing American Kidney Health, and the National Kidney Foundation's CKDintercept Program make the target realistic to achieve.

Methodology

Questions used to obtain the national baseline data

(For additional information, please visit the data source page linked above.)

From the 2013-16 National Health and Nutrition Examination Survey:

Numerator:
{Have you} ever been told by a doctor or other health professional that {you} had weak or failing kidneys? Do not include kidney stones, bladder infections, or incontinence.
  1. YES
  2. NO
  3. Refused
  4. Don't know

Methodology notes

Chronic kidney disease (CKD) stages 1–4 are defined as a urinary albumin-to-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 Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation.

Persons were considered to be aware that they have damaged kidneys or reduced kidney 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.

Numerator is based on NHANES interview question and denominator is based on NHANES Mobile Examination Center laboratory testing.

Age-adjustment notes

This Indicator uses Age-Adjustment Groups:

  • Total: 18-44, 45-64, 65+
  • Sex: 18-44, 45-64, 65+
  • Race/Ethnicity: 18-44, 45-64, 65+
  • Educational Attainment: 25-44, 45-64, 65+
  • Family Income (percent poverty threshold): 18-44, 45-64, 65+
  • Country of Birth: 18-44, 45-64, 65+
  • Disability Status: 20-44, 45-64, 65+
  • Health Insurance Status: 18-44, 45-64
  • Marital Status: 20-44, 45-64, 65+
  • Veteran Status: 18-44, 45-64, 65+
  • Obesity Status: 20-44, 45-64, 65+

History

Comparable HP2020 objective
Modified, which includes core objectives that are continuing from Healthy People 2020 but underwent a change in measurement.
Changes between HP2020 and HP2030
This objective differs from Healthy People 2020 objective CKD-2 in that objective CKD-2 tracked adults 45 years and over who knew they had reduced kidney function, while this objective tracks adults 18 years and over who knew they had reduced kidney function.
Revision History
Revised. 

In 2023, the original baseline was revised from 7.2 to 7.3 percent due to changes to 2021 race free, serum creatine only CKD-EPI equation used to determine estimated glomerular filtration rate (eGFR). The target was adjusted from 10.0 to 10.1 percent to reflect the revised baseline using the original target-setting method.

1. Effect size h=0.1 was chosen to correspond with 10% improvement from a baseline of 50%.