| |
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
|
-
|
-
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.
