Table I. Descriptive Analysis Of Patients.

	HF	Diabetes	CKD	Stroke
General characteristics
No. of patients	1,975,630	1,885,924	1,889,925	1,730,828
No. (%) of positive cases	94,495(4.7)	91,659(4.9)	175,440(9.3)	224,442(12.9)
Baseline characteristics
Mean No. of visits per patient	64.11	60.65	65.33	59.22
Mean No. of codes per visit	4.44	4.32	4.44	4.45
Mean (SD) learning period (year)	8.38 (3.99)	8.31(3.96)	8.40 (4.02)	8,18(3.85)
Mean (SD) age(year)	53.04(18.18)	52.76(18.33)	53.89(18.16)	52.58(18.11)
% of patients with at least one diagnosis code	100	100	100	100
% of patients with at least one medication code	95.9	95.9	96.2	95.1
% of patients with at least one procedure code	60.9	60.5	59.5	61.6
% of patients with at least one test code	88.8	88.3	88.9	88.3
% of patients with at least one BP measurement	88.1	87.7	88.2	87.4
% of patients with at least one BMI measurement	70.2	68.7	70.2	69.4
% of patients with at least one drinking status	62.9	61.9	63.0	62.0
% of patients with at least one smoking status	83.5	82.8	83.6	82.9
Mean No. of diagnosis codes per patient	18.84	18.35	18.57	17.27
Mean No. of medication codes per patient	94.70	85.83	98.79	85.73
Mean No. of procedure codes per patient	4.40	4.28	4.04	4.39
Mean No. of test codes per patient	80.13	72.03	80.76	75.80
Mean No. of BP measurement per patient	15.43	14.28	15.58	14.51
Mean No. of BMI measurement per patient	2.69	2.28	2.71	2.56
Mean No. of drinking status per patient	1.38	1.28	1.40	1.32
Mean No. of smoking status per patient	18.84	18.35	18.57	17.27
Median (IQR) EHR length for learning period	156(267)	148(252)	158(285)	146(255)
No. (%) of patients with EHR length for learning period >256	666,450(33.7)	596,072(31-6)	649,464(34.4)	546,437(31.5)

SD: standard deviation, IQR: interquartile range