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. Author manuscript; available in PMC: 2018 Apr 20.
Published in final edited form as: Am J Med Sci. 2017 Jul 25;354(6):565–572. doi: 10.1016/j.amjms.2017.07.011

TABLE 1.

Comparison of enrolled patients with all patients admitted during the study period at Duke Heart Center.

All patients (n = 5,387) Enrolled patients (n = 520) P Value
Demographic characteristics
 Age, median (IQR)      66 (21)    65 (19) 0.098
 Male 4,032 (58.60)  318 (61.15) 0.255
 White 4,296 (62.85)  336 (64.62) 0.422
 Married 3,722 (54.10)  276 (53.08) 0.652
Clinical characteristics
 Cardiovascular diagnoses
  Acute MI    992 (14.42)    58 (11.39) 0.059
  Atrial fibrillation 1,949 (28.33)  154 (30.26) 0.353
  Heart failure 2,059 (29.93)  173 (33.99) 0.054
 Comorbid diagnoses
  Hypertension 3,489 (50.71)  255 (50.10) 0.789
  Diabetes 2,049 (29.78)  143 (28.09) 0.421
 Length of stay, median (IQR)   4.02 (4.34) 5.11 (6.88) <0.001

Note: Values reported as number (percentages) unless noted otherwise. Distributions were ascertained from patients’ EMRs and include all encounters (n = 6,880) from the 5,387 total patients admitted during this period. IQR, interquartile range; MI, myocardial infarction.