Table 3.

Association of patient characteristics with CKD coding by patient cohort

Characteristic	Pre-eGFR			Post-eGFR			P*interaction
	% coded		OR (95 % CI)	% coded		OR (95 % CI)
Age	<65 years	≥65 years	≥65 vs. <65	<65 years	≥65 years	≥65 vs. <65
Unadjusted	46.4	27.3	0.43 (0.15–1.21)	50.0	48.1	0.93 (0.40–2.17)	0.14
Adjusted
+Sociodemographic	47.8	30.9	0.46 (0.14–1.46)	49.7	49.4	0.99 (0.42–2.34)	0.31
+Clinical	47.9	30.3	0.43 (0.13–1.49)	49.0	52.0	1.16 (0.43–3.13)	0.58
Gender	Male	Female	Female vs. male	Male	Female	Female vs. male
Unadjusted	55.3	22.0	0.23 (0.09–0.55)	52.9	43.5	0.68 (0.33–1.41)	0.06
Adjusted
+Sociodemographic	53.1	25.2	0.29 (0.10–0.81)	53.0	43.3	0.67 (0.33–1.40)	0.20
+Clinical	53.2	25.4	0.28 (0.10–0.80)	52.8	44.0	0.64 (0.28–1.44)	0.20
Race/ethnicity	Other	Black	Black vs. other	Other	Black	Black vs. other
Unadjusted	38.7	51.6	1.69 (0.73–3.93)	47.9	54.3	1.29 (0.59–2.81)	0.64
Adjusted
+Sociodemographic	42.4	47.1	1.23 (0.45–3.35)	47.8	54.6	1.32 (0.60–2.90)	0.94
+Clinical	43.4	45.1	1.08 (0.38–3.10)	47.8	55.0	1.43 (0.58–3.51)	0.66

Pre-eGFR prior to institution of automated eGFR reporting, Post-eGFR after the institution of eGFR reporting, OR odds ratio, CI confidence interval, +Sociodemographic adjusted for all other sociodemographics listed in the table and poverty status, +Clinical additionally adjusted for mean eGFR, mean number of outpatient visits, diabetes, and hypertension

^*P for interaction of characteristic with time (pre- vs. post-eGFR reporting)