Skip to main content

Table 4 Intra- and inter-observer variability

From: Value of quantitative analysis of left ventricular systolic function in patients on maintenance hemodialysis based on myocardial work technique

 

Intra-observer

Inter-observer

ICC

95% CI

ICC

95% CI

GLS

0.94

0.89–0.97

0.93

0.85–0.96

PSD

0.93

0.86–0.97

0.82

0.66–0.91

LVEF

0.84

0.69–0.92

0.79

0.61–0.89

GWI

0.86

0.74–0.94

0.91

0.82–0.95

GCW

0.88

0.76–0.94

0.89

0.79–0.95

GWW

0.96

0.91–0.98

0.93

0.86–0.97

GWE

0.88

0.77–0.94

0.82

0.65–0.91

  1. ICC, intra-class correlation coefficients; 95% CI, 95% confidence interval; GLS, global longitudinal strain; PSD, peak strain dispersion; LVEF, left ventricular ejection fraction; GWI, global work index; GCW, global constructive work; GWW, global wasted work; GWE, global work efficiency