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CKD-3 Data Details

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CKD-3 Increase the proportion of hospital patients who incurred acute kidney injury who have followup renal evaluation in 6 months post discharge

About the Data

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

Data Source: 
United States Renal Data System
Changed Since the Healthy People 2020 Launch: 
Yes
Measure: 
percent
Baseline (Year): 
11.2 (2007)
Target: 
12.3
Target-Setting Method: 
10 percent improvement
Numerator: 

Number of persons aged 65 years and over with an acute kidney injury hospitalization who have a microalbumin test within 6 months post discharge

Denominator: 

Number of persons aged 65 years and over with an acute kidney injury hospitalization

Comparable Healthy People 2010 Objective: 
Not applicable
Data Collection Frequency: 
Annual
Methodology Notes: 

    The data are analyzed for Medicare patients aged 65 and over (5 percent of Medicare sample) with a hospitalized acute kidney injury (AKI) event in given year. Hospitalized AKI is defined by ICD-9-CM diagnosis code 584 in inpatient claims. Renal evaluation is identified by having a microalbumin test. Patients are followed from the discharge date to the earliest of the following dates: (1) death, (2) ESRD, (3) end of Medicare coverage, or (4) six months after the discharge date.

    CPT codes for urinary microalbumin measurement are identified from HEDIS 2008 specifications and include 82042, 82043, 82044, and 84156. (HEDIS 2008, a program of the National Committee for Quality Assurance (NCQA), is used to monitor the performance of managed health care plans.)

    The United States Renal Data System (USRDS) data, data collection procedures, calculation methods, and other technical information are included in the USRDS Annual Data Report.

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 baseline was revised from 11.3 to 11.2 percent due to USRDS rates re-estimation. There is some lag in reporting new cases of ESRD. Therefore, each year’s Annual Data Report includes re-estimates of earlier year rates. For more information see the USRDS Annual Data Reports. The target was adjusted from 12.4 to 12.3 percent to reflect the revised baseline using the original target-setting method.

References

Additional resources about the objective

  1. More information on the analytic methods used to calculate these rates can be found in Appendix A of the USRDS Annual Data Report Atlas

  2. U.S. Renal Data System, USRDS 2012 Annual Data Report: Atlas of Chronic Kidney Disease and End-Stage Renal Disease in the United States, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, 2012