Table 2.

Multiple linear regression analysis to estimate left ventricular end-diastolic and mean diastolic pressures

	Model 1: Including LVEF			Model 2: Including LV Infarct Size
	β	95% CI	P	β	95% CI	P
Dependent variable: LV end-diastolic pressure
Intercept	26.44	16.38 to 36.51	<0.001	17.89	7.25 to 28.53	0.001
LVEF, per 5%	−0.18	−1.04 to 0.68	0.68	–	–	–
Global longitudinal strain, %	0.50	0.06 to 0.93	0.026	0.37	0.02 to 0.72	0.037
Heart rate, per 10 beats/min	−0.22	−0.96 to 0.52	0.55	−0.10	−0.82 to 0.63	0.79
LV end-systolic wall stress, per 10 dyn/mm2	0.23	−0.08 to 0.54	0.14	0.31	0.03 to 0.59	0.033
Interval between MI and measurements*
2 wk	2.77	−0.84 to 6.37	0.13	2.98	−0.50 to 6.46	0.093
4 wk	−1.96	−4.74 to 0.82	0.16	−0.47	−3.45 to 2.51	0.75
LV infarct size, % of LV mass†
>20%	–	–	–	4.72	1.27 to 8.17	0.008
Unavailable	–	–	–	2.38	−0.55 to 5.31	0.11
Dependent variable: LV mean diastolic pressure
Intercept	13.28	6.34 to 20.23	<0.001	9.98	2.41 to 17.56	0.010
LVEF, per 5%	−0.07	−0.67 to 0.52	0.81	–	–	–
Global longitudinal strain, %	0.50	0.20 to 0.80	0.001	0.46	0.21 to 0.70	<0.001
Heart rate, per 10 beats/min	0.14	−0.37 to 0.65	0.59	0.21	−0.30 to 0.73	0.42
LV end-systolic wall stress, per 10 dyn/mm2	0.28	0.06 to 0.49	0.012	0.31	0.10 to 0.51	0.003
Interval between MI and measurements*
2 wk	1.46	−1.03 to 3.95	0.25	1.59	−0.89 to 4.06	0.21
4 wk	−2.15	−4.07 to −0.23	0.028	−1.79	−3.91 to 0.33	0.097
LV infarct size, %LV mass†
>20%	–	–	–	1.47	−0.98 to 3.93	0.24
Unavailable	–	–	–	0.99	−1.09 to 3.08	0.35

LV, left ventricular; LVEF, left ventricular ejection fraction; MI, myocardial infarction.

^*Reference interval is 1 wk after MI.

^†Reference LV infarct size is ≤20% of LV mass.