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Table 1 Characteristics of patients who come to the emergency department with acute chest pain, due to acute coronary syndrome (ACS; n = 130) or other causes (n = 504).

From: A simple statistical model for prediction of acute coronary syndrome in chest pain patients in the emergency department

 

ACS n (%)

Other causes n (%)

OR

95% CI

Age

    

   ≥ 80 years

35 (26.9)

86 (17.1)

10

2.9 – 34

   70 – 79 years

39 (30.0)

103 (20.4)

9.3

2.8 – 31

   60 – 69 years

26 (20.0)

98 (19.4)

6.5

1.9 – 22

   50 – 59 years

22 (16.9)

89 (17.7)

6.1

1.8 – 21

   40 – 49 years

5 (3.8)

54 (10.7)

2.3

0.52 – 10

   < 40 years

3 (2.3)

74 (14.7)

1.0

-

Male

83 (63.8)

279 (55.4)

1.4

0.96 – 2.1

Smoking status

    

   Current

29 (22.3)

98 (19.4)

1.3

0.78 – 2.3

   Former

50 (38.5)

155 (30.8)

1.5

0.91 – 2.3

   Unknown

12 (9.2)

74 (14.7)

0.74

0.36 – 1.5

   Non-smoker

39 (30.0)

177 (35.1)

1.0

-

Hypertension

    

   Yes

47 (36.2)

114 (22.6)

2.0

1.3 – 3.0

   Unknown

8 (6.2)

27 (5.4)

1.4

0.63 – 3.3

   No

75 (57.7)

363 (72.0)

1.0

-

Diabetes

19 (14.6)

57 (11.3)

1.3

0.77 – 2.4

Angina pectorisa

    

   Yes, ≤ 1 month

4 (3.1)

5 (1.0)

3.8

1.0 – 15

   Yes, > 1 month

56 (43.8)

174 (34.5)

1.5

1.0 – 2.3

   No

68 (53.1)

325 (64.5)

1.0

-

Congestive heart failure

20 (15.4)

79 (15.7)

0.98

0.57 – 1.7

Previous myocardial infarction

    

   Yes, ≤ 6 months

13 (10.0)

19 (3.8)

3.2

1.5 – 6.8

   Yes, > 6 months

37 (28.5)

107 (21.2)

1.6

1.0 – 2.6

   No

80 (61.5)

378 (75.0)

1.0

-

Previous PCI

4 (3.1)

21 (4.2)

0.73

0.25 – 2.2

Previous CABG

10 (7.7)

55 (10.9)

0.68

0.34 – 1.4

Treated with cardiac drugsb

85 (65.4)

282 (56.0)

1.5

0.99 – 2.2

Chest discomfort at presentation

85 (65.4)

238 (47.2)

2.1

1.4 – 3.2

Symptom durationc

    

   0 – 6 h

100 (76.9)

261 (52.0)

5.4

2.7 – 11

   7 – 12 h

16 (12.3)

59 (11.8)

3.8

1.6 – 8.8

   13 – 24 h

4 (3.1)

42 (8.4)

1.3

0.40 – 4.5

   > 24 h

10 (7.7)

140 (27.9)

1.0

-

Tachypnea

13 (10.0)

27 (5.4)

2.0

0.98 – 3.9

Lung rales

12 (9.2)

23 (4.6)

2.1

1.0 – 4.4

Systolic bp < 100 mmHgd

4 (3.1)

4 (0.8)

3.9

0.97 – 16

Diastolic bp < 70 mmHge

16 (12.9)

36 (7.3)

2.0

1.0 – 3.7

Heart ratef

    

   > 120 bpm

4 (3.1)

12 (2.4)

1.3

0.41 – 4.1

   < 50 bpm

3 (2.3)

10 (2.0)

1.2

0.32 – 4.3

   50 – 120 bpm

123 (94.6)

480 (95.6)

1.0

-

  1. a Data on angina pectoris were missing for two patients with ACS.
  2. b ACE-inhibitors, ASA, Calcium antagonists, Betablockers, Long-acting Nitrates or Diuretics.
  3. c Data on symptom duration were missing for two patients without ACS.
  4. d Data on systolic blood pressure were missing for 8 patients (one with and 7 without ACS).
  5. e Data on diastolic blood pressure were missing for 15 patients (6 with and 9 without ACS).
  6. f Data on heart rate were missing for 2 patients without ACS.
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BMC Medical Informatics and Decision Making

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