. 2012 Jun 9;89(6):965–976. doi: 10.1007/s11524-012-9726-2

Table 1.

Characteristics of incident CKD patients by study cohort

Characteristic	Overall	Assigned cohort
Characteristic	Overall	Pre-eGFR	Post-eGFR	P
Number	237	106	131	–
Incidence per month	4.4	4.6	4.2	0.25
Sociodemographic
Mean (SD) age (years)	56.0 (13.3)	57.1 (13.4)	55.1 (13.2)	0.24
Gender
% male	63.3	61.3	64.9	0.57
% female	36.7	38.7	35.1	0.57
Race/ethnicity
% Black	27.9	29.3	26.7	0.23^a
% not Black	72.1	70.7	73.3	0.23^a
% White	35.4	38.7	32.8	0.67^b
% Hispanic	12.7	13.2	12.2	0.67^b
% Asian	21.5	15.1	26.7
% other	2.5	3.8	1.5
Poverty status
% PIR ≤ 100	67.6	63.4	70.2	0.30
% PIR > 100	32.4	36.6	29.8	0.30
Clinical
Mean (SD) serum creatinine (mg/dl)	1.81 (1.18)	1.86 (1.23)	1.77 (1.14)	0.54
Mean (SD) eGFR (ml/min/1.73 m²)	48.8 (15.5)	46.9 (13.9)	50.4 (16.5)	0.09
Mean (SD) no. outpatient visits	26.9 (53.4)	30.3 (55.8)	24.3 (51.4)	0.39
Any CKD coding
% with no code	53.6	57.5	50.4	0.27
% with code	46.4	42.5	49.6	0.27
CKD (585.x) coding
% with no code	56.1	50.9	60.3	0.15
% with code	43.4	49.1	39.7	0.15
Diabetes
% without diagnosis	83.5	82.1	84.7	0.58
% with diagnosis	16.5	17.9	15.3	0.58
Hypertension
% without diagnosis	70.0	72.6	67.9	0.43
% with diagnosis	30.0	27.4	32.1	0.43

Pre-eGFR prior to institution of automated eGFR reporting, Post-eGFR after the institution of eGFR reporting, PIR poverty index ratio, with federal poverty level = 100

^aAcross all race/ethnicity categories

^bFor Black vs. non-Black categories