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12345332a Type A ICCs using an absolute agreement definition.b The estimator was the same, regardless of whether the interaction effect was present.A two-way random effects model was applied with both participant effects and measure effects as random.Abbreviations: CI, confidence interval; df, degrees of freedom ICC, intraclass correlation coefficient.bach’s alpha of 0.992, single-measurement ICC of 0.974 (95% CI: 0.997-0.892), and average-measure-ment ICC of 0.991 (95% CI: 0.999-0.961) (Table 2). The for the three measurements was also excellent in observer #2, based on a Cronbach’s alpha of 0.981, single-mea-surement ICC of 0.955 (95% CI: 0.995-0.817), and average-measurement ICC of 0.984 (95% CI: 0.998-0.931) (Table 3). The interrater agreement, summa-intraobserver agreement Table 1　 Detailed results and average diaphragm volume across all measurements (first, second, and third) for observer #1 Table 2　Intraclass correlation coefficients for observer #1 by workstation software PixSpaceTable 3　Intraclass correlation coefficients for observer #2 by workstation software PixSpaceTable 4　Interrater agreement between measurements recorded by the two observers with workstation software PixSpacen=5First (cm3)309.7235.3236.5266.9231.5256.033MeanSDAbbreviation: SD, standard deviation.MeasurementICCSingle Average 0.9740.991A one-way random effects model was applied with participant effects as random.Abbreviations: CI, confidence interval; df, degrees of freedom; ICC, intraclass correlation coefficient.MeasurementICCSingleAverage0.9550.984A one-way random effects model was applied with participant effects as random.Abbreviations: CI, confidence interval; df, degrees of freedom; ICC, intraclass correlation coefficient.MeasurementICCaSingleAverage0.984b0.992and observer #2 according to workstation software PixSpace486Observer #1Second (cm3)302.1240.3230.0279.2221.3254.635Third (cm3)307.2244.3242.2277.5226.2259.53395% CILower0.8920.961Upper0.9970.99995% CILower0.8170.931Upper0.9950.99895% CILower0.8840.939Upper0.9980.999Mean (cm3)306.3240.0236.2274.5226.3256.733First (cm3)314.2258.6233.9263.5224.8259.035F-test with true value=0Value115.413115.413df144F-test with true value=0Value64.39264.392df144F-test with true value=0Value117.593117.593df144rized in Table 4, showed a strong correlation among the measurements recorded by the two observers, with a Cronbach’s alpha of 0.991, single-measure-ment ICC of 0.984 (95% CI: 0.998-0.884), and aver-age-measurement ICC of 0.992 (95% CI: 0.999-0.939).Table 5 summarizes the detailed results and the average of all measurements by workstation soft-ware AZE to Observer #1. The intraobserver agreement for the three measurements by AZE Observer #2Second (cm3)307.5239.8245.5285.7215.8258.937df21010P-value<0.001<0.001Cronbach’s alphadf21010P-value<0.001<0.001Cronbach’s alphadf244P-value<0.001<0.001Cronbach’s alphaThird (cm3)318.0249.3242.5272.3218.6260.138Mean (cm3)313.2249.2240.6273.8219.7259.336Reliability statisticsn0.992Reliability statisticsn0.981Reliability statisticsn0.991