Table 1 Demographics of the combined data used to train and test models for the prediction of seven-day mortality in acute heart failure patients presenting to the Emergency Department. Differences between the positive and negative class were evaluated for significance with a two proportions z-test

  < 30

0 (0.00)

25 (1.56)

0.2785

 30–49

2 (2.70)

153 (9.57)

0.0464

 50–59

7 (9.46)

205 (12.82)

0.3955

 60–69

8 (10.81)

315 (19.70)

0.0582

 70–80

17 (22.97)

311 (19.45)

0.4555

 80+

40 (54.05)

590 (36.90)

0.0029

 Female

33 (44.6)

664 (41.5)

0.601

 Male

41 (55.4)

935 (58.5)

0.601

 American Indian or Alaska Native

0 (0)

1 (0.09)

0.8296

 Asian

26 (35.14)

256 (22.72)

<.0001

 Black or African American

8 (10.81)

204 (18.1)

0.6225

 Native Hawaiian or Other Pacific Islander

4 (5.41)

31 (2.75)

0.0416

 Other

10 (13.51)

149 (13.22)

0.2290

 Unknown/Declined

1 (1.35)

20 (1.77)

0.9394

 Hispanic or Latino

5 (6.76)

93 (8.25)

0.7362

 Not Hispanic or Latino

65 (87.84)

1013 (89.88)

<.0001

 Unknown/Declined

4 (5.41)

21 (1.86)

0.0046

 Dyslipidemia

21 (28.38)

590 (36.9)

0.1367

 Diabetes Mellitus

28 (37.84)

703 (43.96)

0.2989

 Hypertension

46 (62.16)

1223 (76.49)

0.0049

 Peripheral Vascular Disease

4 (5.41)

138 (8.63)

0.3305

 Atrial Fibrillation

38 (51.35)

757 (47.34)

0.4996

 Chronic Kidney Disease

41 (55.41)

839 (52.47)

0.6211

 Hepatic Cirrhosis

4 (5.41)

76 (4.75)

0.7971

 Chronic Obstructive Pulmonary Disease

22 (29.73)

399 (24.95)

0.3546

 Cancer

21 (28.38)

145 (9.07)

<.0001

 Dementia

12 (16.22)

129 (8.07)

0.0136

 Depression

6 (8.11)

176 (11.01)

0.4337

 History of TIA or Ischemic Stroke

2 (2.7)

54 (3.38)

0.7525

 History of MI

12 (16.22)

261 (16.32)

0.9807