Main outcome measures: Reduction in variance (R2) and coefficient of variation (CV).
Results: Untrimmed reduction in variance (R2) was 0.12 and 0.17 for length of stay (LOS) and cost respectively.
This reduction in variance is large if the block-to-block variation relative to the total variation is small.
Such inadvertent correlation errors can result in inappropriate conclusions and self-deception concerning the actual relationships between scaling variables and the associated reduction in variance found in tables and graphs.
Doing so, (gamma) determines the reduction in variance from early to late reporting.
Although the reduction in variance is not as substantial as Miner i. Miner 0 is better off.
The overall fit between observed and calculated waveforms is quite good (Fig. 4), with a reduction in variance of about 91%.
An empirical approach to quantify improvements in G-DRG tariff calculation is to analyze the reduction in variance of costs, which the G-DRG scheme approaches by accurate G-DRG tariff calculation.
The full data set is then used to estimate the performance of the GRNN model using various non-independent indicators, such as the coefficient of correlation, standard deviation of residuals, and reduction in variance with respect to the initial variability.
Similar to Proposition 1, this condition ensures that the surplus under (A_{2}) is higher if the maximal reduction in variance is present ((gamma = 0).) For this to be true, once again (v) needs to be sufficiently low.
