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Table 4 Linear regression for the LVM by LVShV

From: Cardiac left ventricular myocardial tissue density, evaluated by computed tomography and autopsy

 

Linear Regression Equation

R 2

Residual SE

Linear regression forced through origo Equation

R 2

Residual SE

Women

45.73 + 0.93057 g/ml * LVShV

0.9835

26.15

1.267 g/ml* LVShV

0.9792

29.25

Men

59.63 + 0.93057 g/ml * LVShV

0.9835

26.15

1.264 g/ml* LVShV

0.9792

29.25

All

42.36 + 1.0061 g/ml * LVShV

0.7331

26.73

1.265 g/ml* LVShV

0.9792

29.11

  1. There was no significant difference between the slope of the genders, why a fitted model was used, 0.93057. A slightly different constant was seen due to the LVM being bigger in men. There was no difference in the LVM calculating equation (LVShV * myocardial density), when the line of regression was forced through the origo. Knowing the gender and not forcing the linear regression through the origo had the best fit. (LVM, left ventricular mass; g, grams; ml, milliliters; LVShV, LV shell volume)
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BMC Medical Imaging

ISSN: 1471-2342

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