Table 2.

Multivariate linear regression models. Model #1 examines the association between LV diastolic diameter and years after surgery, adjusting for multiple potential confounders. Model #2 examines the association between LV fractional shortening and years after surgery, adjusting for multiple potential confounders.

	Dependent variable	Independent variables	Coefficient (β)	95% Conf Interval	p-value
Model #1	LV diast diam (mm)
	Years after surgery	−0.12 mm/year	[−0.97, 0.73]	0.79
	Age (years)	−0.07	[−0.16, 0.02]	0.13
	Male		3.57	[1.42, 5.71]	0.001
	Black (c/w white)		0.78	[−2.34, 3.91]	0.62
	Hispanic (c/w white)	5.59	[1.97, 9.23]	0.003
	Unkn Race (c/w white)	1.62	[−1.40, 4.64]	0.29
	CABG	−2.70	[−5.03, −0.38]	0.02
	EF < 50%	10.03	[7.76, 12.32]	<0.001
	Mitral leaflet disease	−2.19	[−4.74, 0.36]	0.09
	Mitral repair	−0.34	[−2.56, 1.87]	0.76
Model #2	Fractional shortening (%) years after surgery
	3.8 %/year	[0.67, 6.88]	0.02
	Age (years)	0.001	[−0.002, 0.004]	0.54
	Male		−0.06	[−0.13, 0.02]	0.17
	Black (c/w white)		0.02	[−0.09, 0.14]	0.67
	Hispanic (c/w white)	0.03	[−0.10, 0.16]	0.66
	Unkn Race (c/w white)	−0.03	[−0.14, 0.08]	0.60
	CABG	−0.02	[−0.11, 0.06]	0.58
	EF < 50%	−0.007	[−0.09, 0.08]	0.86
	Mitral leaflet disease	0.09	[−0.004, 0.18]	0.06
	Mitral repair	0.01	[−0.07, 0.09]	0.10