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Table 1 Patient characteristics

From: The feasibility of the 1-h high-sensitivity cardiac troponin T algorithm to rule-in and rule-out acute myocardial infarction in Thai emergency patients: an observational study

Variable

0–3 h (n = 65)

0–1 h (n = 65)

p value

Age (years)

71.6 ± 13.2

66.6 ± 14.2

0.041

Male sex

37 (56.9)

26 (40)

0.054

Underlying disease

 Coronary artery disease

  Previous CABG

12 (18.5)

10 (15.4)

0.77

  Previous PCI

7 (10.8)

8 (12.3)

 

  No intervention

12 (18.5)

10 (15.4)

 

 Diabetes mellitus

25 (38.5)

21 (32.3)

0.46

 Hypertension

45 (69.2)

43 (66.2)

0.71

 Chronic kidney disease

27 (41.5)

23 (35.8)

0.47

  Stage III

15 (23.1)

10 (15.4)

0.01

  Stage IV

11 (16.9)

2 (3.1)

0.24

 GFR (mL/min/1.73m2)

55.7 ± 25.8

67.1 ± 22.4

0.008

Current medication

 Aspirin

32 (49.2)

34 (5.2)

0.65

 P2Y12 inhibitor

16 (24.6)

16 (24.6)

0.96

 Beta-blocker

39 (58.5)

25 (38.5)

0.03

 Calcium-channel blockers

23 (35.4)

20 (30.8)

0.62

 Nitrate

24 (36.9)

13 (20)

0.05

 Anticoagulant

9 (13.8)

10 (15.4)

0.78

 Diuretic

17 (26.2)

8 (12.3)

0.007

 ACEI/ARB

28 (43.1)

23 (35.4)

0.41

Onset of chest pain (hours)

5.5 ± 3.5

3.1 ± 3.0

< 0.001

Period of emergency department visit

 Government day time

28 (43.1)

29 (44.6)

0.99

 Government night time

19 (29.2)

19 (29.2)

 

 Public holiday

18 (27.7)

17 (26.2)

 

Initial electrocardiogram

 ST depression

15 (23.1)

11 (16.9)

0.54

 T wave inversion

13 (20)

8 (12.3)

 

 Pathologic q wave

5 (7.7)

10 (15.4)

 

 LBBB

3 (4.6)

2 (3.1)

 

 RBBB

6 (9.2)

4 (6.2)

 

 Arrhythmia

5 (7.7)

7 (10.8)

 

Treatment in emergency department

 Aspirin

27 (41.5)

15 (23.1)

0.04

 P2Y12 inhibitor

24 (36.9)

17 (26.2)

0.19

 Morphine

3 (4.6)

0 (0)

0.08

 Nitroglycerine

23 (35.4)

14 (21.5)

0.08

 Intravenous furosemide

28 (43.1)

18 (27.7)

0.07

 Anticoagulant

26 (40)

19 (29.2)

0.2

 Oxygen

37 (56.9)

17 (26.2)

< 0.001

  1. Data was presented in mean ± SD. Frequency was presented in n (%)
  2. Abbreviations: ACEI angiotensin converting enzyme inhibitor, ARB angiotensin receptor blocker, CABG coronary artery bypass grafting, GFR glomerular filtration rate, LBBB left bundle branch block, PCI percutaneous coronary intervention, RBBB right bundle branch block, 0–1 h 1-h high-sensitivity cardiac troponin T algorithm, 0–3 h 3-h high-sensitivity cardiac troponin T algorithm