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. Author manuscript; available in PMC: 2016 Aug 18.
Published in final edited form as: J Biomed Inform. 2015 Sep 12;58(Suppl):S171–S182. doi: 10.1016/j.jbi.2015.09.006

Table 6.

The overall performance of the system at the risk indicator level on the i2b2 test data

Risk Factor Indicator #Expected #Predicted #Correct Precision Recall F-measure

CAD mention 516 621 501 0.806 0.971 0.881
event 139 90 76 0.844 0.546 0.664
test 59 85 43 0.505 0.728 0.597
symptom 70 21 10 0.476 0.143 0.219

DIABETES mention 1,065 1,068 1,018 0.953 0.956 0.954
AlC 82 87 68 0.781 0.829 0.804
glucose 33 36 8 0.222 0.242 0.231

OBESE mention 245 285 239 0.838 0.975 0.902
BMI 17 11 11 1.000 0.647 0.785

HYPERLIMIDEMIA mention 711 717 687 0.958 0.966 0.962
high LDL 29 39 20 0.512 0.689 0.588
high chol. 11 13 5 0.384 0.454 0.416

HYPERTENSION mention 1,098 1,143 1,089 0.953 0.992 0.972
high bp 195 204 159 0.779 0.815 0.797

MEDICATION ACE inhibitor 612 674 583 0.865 0.952 0.906
ARB 193 211 193 0.914 1.000 0.955
aspirin 798 871 789 0.906 0.988 0.945
beta blocker 835 905 817 0.903 0.978 0.939
calcium channel 385 414 368 0.889 0.955 0.921
blocker 222 310 218 0.703 0.982 0.819
diuretic 6 6 6 1.000 1.000 1.000
DPP4 inhibitors 36 59 35 0.593 0.972 0.736
ezetimibe 90 104 88 0.846 0.977 0.907
fibrate 395 383 351 0.916 0.888 0.903
insulin 356 418 356 0.852 1.000 0.920
metformin 25 41 22 0.536 0.880 0.666
niacin 271 369 268 0.726 0.989 0.837
nitrate 817 865 802 0.927 0.981 0.953
statin 288 309 282 0.912 0.979 0.944
sulfonylureas 61 69 58 0.841 0.951 0.892
thiazolidinedione thienopyridine 284 308 276 0.896 0.972 0.932

SMOKER current 33 51 30 0.588 0.909 0.714
ever 3 1 0 0.000 0.000 0.000
never 120 116 109 0.939 0.908 0.923
past 113 108 98 0.907 0.867 0.887
unknown 243 238 233 0.979 0.958 0.969

FAMILY_HIST not present 495 489 481 0.983 0.956 0.954
present 19 25 11 0.440 0.579 0.500