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. 2021 Oct 1;8:733339. doi: 10.3389/fcvm.2021.733339

Table 6.

Repeatability and reproducibility of myocardial work parameters.

Parameters Mean ± SD Mean ± SD Bias 95%LOA
Intraobserver
GWI (mm Hg%) 1,784.70 ± 248.05 1,797.40 ± 239.75 20.70 −50.57–91.97
GCW (mm Hg%) 1,965.95 ± 262.88 2,009.05 ± 262.523 43.10 −128.58–214.78
GWW (mm Hg%) 36.65 ± 15.28 39.90 ± 16.37 3.25 −4.96–11.46
GWE (%) 97.40 ± 0.88 97.45 ± 0.76 0.05 −0.95–1.05
Interobserver
GWI (mm Hg%) 1,784.70 ± 248.05 1,783.65 ± 220.39 −8.35 −128.20–111.50
GCW (mm Hg%) 1,965.95 ± 262.88 1,991.60 ± 258.02 25.65 −110.66–161.96
GWW (mm Hg%) 36.65 ± 15.28 38.75 ± 12.78 2.30 −10.29–14.89
GWE (%) 97.40 ± 0.88 97.25 ± 0.79 −0.15 −1.11–0.81

SD, standard deviation; LOA, limits of agreement; SD, standard deviation. GWI, global work index; GCW, global constructive work; GWW, global wasted work; GWE, global work efficiency.