Research Article

Diagnostic Implications of an Elevated Troponin in the Emergency Department

Table 3

Positive troponin population data analysis by diagnostic groups.

Type I MIOther cardiovascular diagnosesNoncardiovascularCombined value
= 89 = 277 = 438 = 804

Age 804 57 64 77 57 69 80 60 74 83 58 71 81 <0.0011
Sex 804 0.382
 Female 40% (36) 46% (128) 48% (212) 47% (376)
 Male 60% (53) 54% (149) 52% (226) 53% (428)
First cTnI 804 0.09 0.34 2.49 0.06 0.09 0.21 0.06 0.10 0.24 0.06 0.10 0.27 <0.0011
First cTnI (categorized) 804 <0.0012
 Low 26% (23) 53% (148) 48% (212) 48% (383)
 Medium 36% (32) 40% (111) 45% (196) 42% (339)
 High 38% (34) 6% (18) 7% (30) 10% (82)
eGFR 758 52 73 90 30 51 72 25 50 72 29 52 7 <0.0011
CKMB 759 1.9 3.6 9.5 1.6 2.7 4.2 1.5 2.9 5.6 1.6 2.9 5.5 0.0031
Creatinine 758 0.80 1.00 1.26 0.90 1.30 2.00 0.98 1.30 2.35 0.90 1.24 2.04 <0.0011
MI 804 <0.0012
 No 0% (0) 100% (277) 100% (438) 89% (715)
 Yes 100% (89) 0% (0) 0% (0) 11% (89)
Urgent revascularization 804 <0.0012
 No 26% (23) 100% (277) 100% (438) 92% (738)
 Yes 74% (66) 0% (0) 0% (0) 8% (66)
Status 804 <0.0012
 Alive 94% (84) 96% (267) 84% (368) 89% (719)
 Died 6% (5) 4% (10) 16% (70) 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.