Table 3:

Longitudinal strain parameters in patients with and without ATTR-CM

Characteristic	No ATTR-CM (n=214)	ATTR-CM (n=303)	p-value
GLS (%)	−11.6 ± 4.1	−8.4 ± 2.9	<0.001
Basal GLS (%)	−11.1 ± 4.5	−6.3 ± 2.8	<0.001
Mid ventricular GLS (%)	−11.1 ± 4.4	−7.9 ± 3.2	<0.001
Apical GLS (%)	−13.1 ± 5.7	−11.9 ± 4.2	0.004
RELAS	0.6 ± 0.2	0.9 ± 0.3	<0.001
SAB	2.2 ± 2.1	4.5 ± 4.8	<0.001
EFSR	4.7 ± 1.5	5.8 ± 1.8	<0.001

EFSR, ejection fraction strain ratio; GLS, global longitudinal strain; RELAS, relative apical sparing ratio; SAB, septal apical to base longitudinal strain ratio.

Data is displayed as mean ± standard deviation.

^*parameter not measured in entire cohort as detailed in text