Tissue Doppler in critical illness: a retrospective cohort study

Table 3 Clinical and echocardiographic correlates of 28-day mortality

Variable	Univariate		Multiple regression
	OR (95% CI)	P	OR (95% CI)	P
Female sex	0.85 (0.38 to 1.9)	0.7
Age (per decade)	1.03 (0.8 to 1.3)	0.8
APACHE III predicted hospital death (×10)^a	1.18 (1.03 to 1.4)	0.017	1.3 (1.1 to 1.5)	0.0028
E (m/s)	2.3 (0.7 to 7.6)	0.16
A (m/s)	0.74 (0.22 to 2.5)	0.6
E' (×10 cm/s)^a	1.0 (0.5 to 1.9)	0.9
E/E' ratio (/10)^a	1.3 (0.6 to 2.8)	0.5
LA area (/10 cm²)^a	1.5 (0.8 to 2.9)	0.19
LA volume (/100 mL)^a	1.4 (0.22 to 9)	0.7
LVEDV (/100 mL)^a	2.0 (1.2 to 3.3)	0.0059
LVESV (/100 mL)^a	2.2 (1.3 to 3.8)	0.0047	2.1 (1.2 to 3.7)	0.0068
LV stroke volume (/100 mL)^a	1.4 (0.32 to 6.1)	0.7
LV ejection fraction (/100%)^a	0.24 (0.03 to 1.7)	0.15
IVC diameter (cm)	1.8 (0.8 to 4.1)	0.14

For multiple regression analysis, only variables included in the final best model are shown. ^aThe scale of these variables was altered by the amount shown in parentheses to aid interpretation of odds ratios. A, peak active transmitral velocity; APACHE, Acute Physiology and Chronic Health Evaluation; CI, confidence interval; E, peak early diastolic (passive) transmitral velocity; E', peak early diastolic mitral annular velocity; IVC, inferior vena cava; LA, left atrial; LV, left ventricular; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; OR, odds ratio.

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