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Table 5 Interobserver and intraobserver reproducibility and repeatability

From: Peak systolic longitudinal rotation: a new tool for detecting left ventricular systolic function in patients with type 2 diabetes mellitus by two-dimensional speckle tracking echocardiography

Variable Global PSLR(°) P-value
First analysis Interobserver Intraobserver
Mean ± SD 95% CI Mean ± SD 95% CI Mean ± SD 95% CI
T2DM −2.18 ± 3.26 −3.10~ −1.26 −2.16 ± 3.21 −3.06~ − 1.26 −2.25 ± 3.27 −3.17~ − 1.33 0.989
Normal −0.18 ± 2.50 −0.87~0.52 −0.16 ± 2.42 − 0.89~ 0.47 −0.17 ± 2.39 − 0.90~ 0.45 0.999
P-value 0.001 0.001 < 0.001