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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). |
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| ACS n (%) |
Other causes n (%) |
OR |
95% CI |
|
|
|
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| Age |
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| ≥ 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| > 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 |
- |
|
a Data on angina pectoris were missing for two patients with ACS. b ACE-inhibitors, ASA, Calcium antagonists, Betablockers, Long-acting Nitrates or Diuretics. c Data on symptom duration were missing for two patients without ACS. d Data on systolic blood pressure were missing for 8 patients (one with and 7 without ACS). e Data on diastolic blood pressure were missing for 15 patients (6 with and 9 without ACS). f Data on heart rate were missing for 2 patients without ACS. | ||||
Björk et al. BMC Medical Informatics and Decision Making 2006 6:28 doi:10.1186/1472-6947-6-28 |
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