Table 2 Clinical symptoms and ECG presentations

 Abdinal pain + syncope

0 (0%)

11 (2.1%)

1

0 (0%)

1 (3.1%)

1

 Anterior chest pain

9 (28.1%)

159 (30.2%)

0.806

9 (28.1%)

5 (15.6%)

0.226

 Posterior chest pain

0 (0%)

11 (2.1%)

0.409

0 (0%)

1 (3.1%)

1

 Back pain + syncope

0 (0%)

5 (0.9%)

1

0 (0%)

0 (0%)

1

 Abdomina pain

1 (3.1%)

29 (5.5%)

0.865

1 (3.1%)

3 (9.4%)

0.606

 Chest pain + back pain

1 (3.1%)

9 (1.7%)

1.0

1 (3.1%)

0 (0%)

1

 Cardiogenic shock

4 (12.5%)

45 (8.5%)

0.442

4 (12.5%)

3 (9.4%)

1

 Chest pain + syncope

2 (6.3%)

24 (4.6%)

0.992

2 (6.3%)

3 (9.4%)

1

 Syncope

8 (25.0%)

102 (19.4%)

0.435

8 (25%)

9 (28.1%)

0.777

 Persistent or intermittent chest tightness

0 (0%)

30 (5.7%)

0.325

0 (0%)

4 (12.5%)

0.113

 Anterior pain + abdmina pain

7 (21.9%)

98 (18.6%)

0.645

7 (21.9%)

3 (9.4%)

0.302

 II, III, AVF leads

20 (62.5%)

201 (38.1%)

0.006

20 (62.5%)

13 (40.6%)

0.08

 V1-V3 leads

2 (6.3%)

45 (8.5%)

0.651

2 (6.3%)

3 (9.4%)

1.000

 V1-V5 leads

5 (12.5%)

31 (5.9%)

0.261

4 (12.5%)

1 (3.1%)

0.352

 V3-V5 leads

0 (0%)

190 (36.1%)

0.000

0 (0%)

13 (40.6%)

0.000

 V7-V9 leads

0 (0%)

4 (0.8%)

1.000

0 (0%)

2 (6.3%)

0.492

 V3R-V4R leads

0 (0%)

7 (1.3%)

1.000

0(%)

0 (0%)

1

 AVR lead

1 (3.1%)

16 (3.1%)

1.000

1 (3.1%)

0 (0%)

1

 I, AVL leads

0 (0%)

25 (4.7%)

0.388

0 (0%)

0 (0%)

1

 De Winter Syndrome

1 (3.1%)

7 (1.3%)

0.949

1 (3.1%)

0 (0%)

1

 New onset  LBBB

0 (0%)

1 (0.2%)

1.000

0 (0%)

0 (0%)

1

 Systolic pressure

105 [100,124]

105 [100,120]

0.415

105 [100,124]

105 [95,122]

0.543

 Diastolic pressure

60 [55,65]

60 [55,65]

0.676

60 [55,65]

57 [54,65]

0.566

 Heart rate

60 [51.5,85]

78 [75,84]

0.000

60 [51.5,85]

78 [71,83]

0.011

 Respiration rate

22 [20,23.5]

22 [18,23]

0.042

22 [20,23.5]

22 [18,23]

0.237