Diagnostic Implications of an Elevated Troponin in the Emergency Department
Table 2
Positive troponin population data analysis by troponin level strata.
Low
Medium
High
Combined
value
= 383
= 339
= 82
= 804
Age
804
59 72 82
58 70 81
57 67 80
58 71 81
0.221
Sex
804
0.952
Female
46% (177)
47% (160)
48% (39)
47% (376)
Male
54% (206)
53% (179)
52% (43)
53% (428)
First cTnI
804
0.05 0.06 0.08
0.12 0.20 0.35
1.73 3.00 6.29
0.06 0.10 0.27
<0.0011
Type of diagnosis
804
<0.0012
Type 1 MI
6% (23)
9% (32)
41% (34)
11% (89)
Other cardiovascular diagnoses
39% (148)
33% (111)
22% (18)
34% (277)
Noncardiovascular
55% (212)
58% (196)
37% (30)
54% (438)
eGFR
758
30 53 75
26 49 72
38 64 85
29 52 75
0.0151
CKMB
759
1.2 2.4 4.0
1.6 3.0 5.3
5.1 9.2 21.3
1.6 2.9 5.5
<0.0011
Creatinine
758
0.90 1.21 2.00
0.94 1.30 2.30
0.87 1.08 1.60
0.90 1.24 2.04
0.0261
MI
804
<0.0012
No
94% (360)
91% (307)
59% (48)
89% (715)
Yes
6% (23)
9% (32)
41% (34)
11% (89)
Urgent revascularization
804
<0.0012
No
95% (364)
94% (320)
66% (54)
92% (738)
Yes
5% (19)
6% (19)
34% (28)
8% (66)
Status
804
0.0012
Alive
93% (355)
88% (299)
79% (65)
89% (719)
Died
7% (28)
12% (40)
21% (17)
11% (85)
represent the lower quartile , the median , and the upper quartile for continuous variables. is the number of nonmissing values. Numbers after percents are frequencies. Tests used: 1Kruskal-Wallis test; 2Pearson’s test.
