Table 3.

Cox regression analysis: associations between baseline echocardiographic parameters, changes in echocardiographic parameters between baseline and 12 mo, and cardiac failure after 12 mo

ParameterHazards Ratio (95% confidence interval)P Value
aThe model covariates were age, diabetes mellitus, ischemic heart disease, and LV mass index at baseline and the change in LV mass index from baseline to 1 yr.
bThe model covariates were age, diabetes mellitus, ischemic heart disease, and LV cavity volume index at baseline and the change in LV volume index from baseline to 1 yr.
cThe model covariates were age, diabetes mellitus, ischemic heart disease, and LV fractional shortening at baseline and the change in LV fractional shortening from baseline to 1 yr.
Change in LV mass indexa (per 20 g/m2)
baseline1.3 (1.1 to 1.4)0.001
difference1.3 (1.1 to 1.5)0.0006
Change in LV cavity volume indexb (per 20 ml/m2)
baseline1.3 (1.1 to 1.6)0.01
difference1.2 (0.9 to 1.4)No association
Change in LV fractional shorteningc (per 5%)
baseline0.9 (0.7 to 1.2)No association
difference0.7 (0.6 to 0.8)0.0001