The role of cardiac troponin I as a prognosticator in critically ill medical patients: a prospective observational cohort study

Table 2 Background characteristics of study population, according to outcome

	All (n = 128)^a	Alive (n = 104)^a	Dead (n = 24)^a	p value
Age (years)	53.9 ± 19	51.6 ± 19.4	64 ± 13.6	0.001
Male	68 (53.1)	57 (54.8)	11 (45.8)	0.427
APACHE II	15.3 ± 8.9	13.6 ± 7.5	22.7 ± 10.9	<0.001^b
Cause of admission
Sepsis	46 (35.9)	34 (32.7)	12 (50)	0.111
Respiratory failure	35 (27.3)	27 (26)	8 (33.3)	0.465
Poisoning / drug overdose	10 (7.8)	10 (9.6)	0	0.206
GI hemorrhage	6 (4.7)	5 (4.8)	1 (4.2)	1.0
Miscellaneous	31 (24.2)	28 (26.9)	3 (12.5)	0.137
Parameters upon admission
Maximal temperature	37.9 ± 1.1	37.8 ± 1.1	38.1 ± 1.4	0.111^b
Minimal mean arterial pressure	70.6 ± 21.7	73.1 ± 22.1	59.5 ± 15.9	0.006
White blood cell count (×1000)	14.8 ± 8.5	14.7 ± 8.1	15.4 ± 10.2	0.723
Creatinine (μmol/l)	133 ± 133	133 ± 142	159 ± 88	0.004^b
Use of pressors	48 (37.5)	34 (32.7)	14 (58.3)	0.02
cTnI > 0.7	35 (27.3)	10 (19.2)	15 (62.5)	<0.001
Length of stay (ICU)	3.3 ± 28.5	2.7 ± 31.5	6.3 ± 5.9	0.045^b
Days on mechanical ventilation	3.7 ± 5.4	3.1 ± 5.2	6 ± 5.7	<0.001^b

^aNumbers are n, percentages (in parentheses) or mean ± SD, as appropriate. ^bMan-Whitney test was applied due to abnormality of the data distribution. APACHE, Acute Physiology and Chronic Health Evaluation; ICU, intensive care unit. GI, Gastrointestinal hemorrhage

ISSN: 1364-8535