Table 2. Chart Review Protocol
ICD-9 Code585.3
Race/ethnicityWhite, African American, Hispanic, or Native American
AgeNumeric value
Body mass indexNumeric value
Two most recent GFR values, with datesNumeric value*
Two most recent ACR values, with datesNumeric value*
Diagnosis based on GFR correct?Yes/No
Diagnosis based on ACR correct?Yes/No
ACR dateDate
ACR verified? (2 successive ACRs at least 90 days apart)Dates and values of the 2 ACRs
    Diabetes mellitusYes/no
    Congestive heart failureYes/no
    Sleep apneaYes/no
    Acute kidney injuryYes/no
    Coronary artery diseaseYes/no
  • * Values were recorded only at the Buffalo sites.

  • ACR, albumin-to-creatinine ratio; GFR, glomerular filtration rate; ICD-9, International Classification of Diseases, Ninth Revision.