Disease Markers / 2015 / Article / Tab 2

Research Article

Diagnostic Implications of an Elevated Troponin in the Emergency Department

Table 2

Positive troponin population data analysis by troponin level strata.

LowMediumHighCombined 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 diagnoses39% (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.

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