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Table 3 Outcome according to MI category

From: A prospective study of the impact of serial troponin measurements on the diagnosis of myocardial infarction and hospital and six-month mortality in patients admitted to ICU with non-cardiac diagnoses

 

Total

MI (definite or possible MI)

Elevated cTnT only

No cTnT rise (normal)

unadjusted P-value

adjusted P-value*

 

(n = 144)

(n = 59)

(n = 62)

(n = 23)

   

ICU mortality, n (%)

32 (22%)

17 (29%)

14 (23%)

1 (4.35%)

MI vs elevated cTnT;

0.43

0.32

MI vs normal:

0.04

0.16

Elevated cTnT vs normal

0.081

0.30

Hospital mortality, n (%)

42 (29%)

22 (37%)

19 (31%)

1 (4%)

MI vs elevated cTnT

0.44

0.39

MI vs normal

0.015

0.070

Elevated cTnT vs normal

0.032

0.14

180 days mortality, n (%)

51 (35%)

27 (46%)

23 (37%)

1 (4%)

MI vs elevated cTnT

0.33

0.28

MI vs normal

0.006

0.058

Elevated cTnT vs normal

0.015

0.13

ICU length of stay, median (IQR)

7 (3 to 12)

8 (3 to 18)

6 (3 to 11)

4 (2 to 10)

MI vs elevated cTnT

0.13

0.13

MI vs normal

0.07

0.058

Elevated cTnT vs normal**

0.48

0.36

Hospital length of stay, median (IQR)

22 (10 to 46)

30 (12 to 51)

19.5 (9 to 46)

18 (5 to 38)

MI vs elevated cTnT

0.27

0.42

MI vs normal

0.17

0.16

Elevated cTnT vs normal**

0.57

0.37

  1. cTnT, cardiac troponin T; ICU, intensive care unit; IQR, inter-quartile range; MI, myocardial infarction.
  2. *adjusted for age, APACHE II score, hypertension, diabetes and any type of vascular disease (reduced to two principal components in the regression models).
  3. **estimates based on log-transformed outcomes.