The changes were estimated by multiple determinations of albumin-to-creatinine ratios (ACRs) and serum cystatin C (GFRcystatin).
For the measures of goodness of fit, in the simple linear regression models, we used the squared coefficient of multiple determination, R, to measure the predictivity of the model outcome variable in terms of explained variability of the dependent variable [ 25].
The statistical coefficient of multiple determinations (R2 value) equals to 1, 0.9996, 1 for the COP, ECOP and F, respectively.
The statistical coefficient of multiple determinations (R2 – value) equals to 0.976, 0.9825, 0.9855 for the coefficient of performance (COP), exergetic coefficient of performance (ECOP) and circulation ratio (F), respectively.
The best statistical coefficient of multiple determinations (R2-value) for training data equals to 0.999715, 0.995627, 0.999497, and 0.997648 obtained by different algorithms with seven neurons for the non-dimensional exergy losses of evaporator, generator, absorber and condenser, respectively.
Of the remaining 411 patients eligible for follow-up, 355 (86%) had multiple measures (median = 5) of serum cystatin C to estimate GFR and multiple determinations of ACR (median = 5) during 4 years of follow-up.
The regression model estimations of annual drainage flow were highly correlated with DRAINMOD simulated values with an adjusted coefficient of multiple determination (R2adj) equal to 0.91 or higher for different management scenarios.
In simulations, root-mean-square (RMS) and the coefficient of multiple determinations (R2) as two performance measures were obtained to compare the predicted and actual values for model validation.
The lack-of-fit test results and the high value of coefficients of multiple determinations showed the adequacy of this analytical method to predict the required performance of eco-efficient UHPC.
However, from overall, the RSD values in all repeatability and reproducibility tests were satisfactory and showed that the methods used were reliable to produce precise data for multiple determinations of fatty acids (saturated and unsaturated) in fish and shellfish samples, both in a single-day and multiple-day determinations.
