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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Am J Nephrol. 2014 Apr 1;39(4):288–296. doi: 10.1159/000360306

Table 1.

Characteristics of those with and without CKD recognition in the EHR problem list

Characteristic No recognition (N=23007) CKD recognition (N=2735) p value*
Age, yrs, mean (s.d.) 70.9±12.3 68.4±13.8 <0.0011
Female, n (%) 14424(62.7) 1069(39.1) <0.001
Male, n (%) 8583(37.3) 1666(60.9)
Race, n (%) <0.001
 Caucasian 20424(88.8) 2098(76.7)
 African American 2227(9.7) 583(21.3)
 Other 356(1.5) 54(2.0)
Insurance, n (%); ** <0.001
 Medicare 17462(77.3) 2066(77.6)
 Medicaid 131(0.58) 27(1.0)
 Other 4991(22.1) 571(21.4)
Years of Outpatient follow up, mean (s.d.) 4.6±1.6 4.5±1.8 0.040
Office Visits per year, mean (s.d.) 6.3±4.7 7.7±5.7 <0.0011
eGFR 50.1±8.6 37.5±12.3 <0.0011
CKD stages <0.001
 CKD Stage 3a 17680(76.8) 833(30.5)
 CKD Stage 3b 4572(19.9) 1101(40.3)
 CKD Stage 4 715(3.1) 699(25.6)
 CKD Stage 5 40(0.17) 102(3.7)
eGFR at 1 year post confirmation 52.6±11.7 37.0±14.2 <0.0011
Comorbid Conditions
 Hypertension, Yes, n (%) 20841(90.6) 2558(93.5) <0.001
 Coronary Artery Disease, Yes, n (%) 4317(18.8) 683(25.0) <0.001
Congestive Heart Failure, Yes, n (%) 1292(5.6) 271(9.9) <0.001
Hyperlipidemia, Yes n (%) 19154(83.3) 2230(81.5) 0.024
Cerebrovascular disease, (%) 2042(8.9) 325(11.9) <0.001
Diabetes, Yes, n (%) 5285(23.0) 1096(40.1) <0.001
*

Chi-Square

**

Insurance Missing, n=494

1

Equal Variance T-Test

CKD = chronic kidney disease; EHR = electronic health record; eGFR = estimated glomerular filtration rate; Other is non-Medicare/Medicaid health insurance