Table 6. Gender- and age-related reference value of LV 3D global peak strains.

Variable	G20-40				G41-60				G61-80			Male (n=75)	Female (n=75)
	Male	Female	All−G20−40		Male	Female	All−G41−60		Male	Female	All−G61−80
GRS	41.2±14.7	41.9±9.5	41.6±12.2		40.4±11.1	47.0±16.6	43.7±14.3		43.6±10.1	52.4±11.4a	48.0±11.5b	41.7±12.0	47.1±13.4a
GCS	−16.4±2.4	−16.6±2.3	−16.5±2.3		−15.8±2.4	−17.1±3.4	−16.5±3.0		−17.2±2.5	−18.8±2.2a	−18.0±2.5bc	−16.5±2.5	−17.5±2.8a
GLS	−14.9±1.8	−15.7±2.3	−15.3±2.1		−14.3±2.4	−15.2±2.6	−14.7±2.5		−15.1±2.4	−17.0±1.8a	−16.1±2.3c	−14.8±2.2	−16.0±2.3a

Results are reported as mean ± SD. All strain values are given in %. ^aP<0.05: male vs. female; ^bP<0.05: G_20-40 vs. G_61-80; ^cP<0.05: G_41-60 vs. G_61-80. LV, left ventricular; GRS, global radial peak strain; GCS, global circumferential peak strain; GLS, global longitudinal peak strain.