Table 4.

Comparison of myocardial strain in obstructive CAD group, CMD group and control group

Parameters	obstructive CAD group (n = 67)	CMD group (n = 67)	control group (n = 108)	P value
GLS, %	− 20.3 ± 1.8△▲	− 21.1 ± 2.2△	− 22.8 ± 2.0	0.000
LS of each ventricular wall, %
LS of anterior septum	− 17.7 ± 3.3△	− 18.5 ± 4.3△	−20.8 ± 3.9	0.000
LS of anterior wall	−19.3 ± 3.0△	−19.8 ± 3.6△	−22.3 ± 2.8	0.000
LS of lateral wall	−21.5 ± 2.5△	−22.0 ± 3.3△	− 23.9 ± 2.7	0.000
LS of posterior wall	−18.2 ± 2.9△▲	− 20.0 ± 3.4	−20.6 ± 2.8	0.000
LS of inferior wall	−20.2 ± 2.9△	−20.3 ± 3.2△	−22.6 ± 2.8	0.000
LS of posterior septum	−18.5 ± 2.6△	−19.3 ± 3.1△	−21.0 ± 2.4	0.000
LS of apex	−25.4 ± 3.0△	−24.8 ± 3.8△	−28.9 ± 3.3	0.000
stratified LS, %
LS of endocardium	−23.5 ± 2.1△	− 24.3 ± 2.5△	−26.2 ± 2.4	0.000
LS of epicardium	−17.6 ± 1.5△▲	− 18.5 ± 2.0△	−20.0 ± 1.8	0.000

GLS global longitudinal strain, LS longitudinal strain. ^▲: P < 0.05vs. CMD group; ^△: P < 0.05 vs.control group