The computing times for the predictors imply a reduction of two orders of magnitude in comparison to a Monte Carlo procedure.
The inputs needed to compute a sample size are (1) α, the Type I error rate, (2) the predictors implied by the design, (3) the target hypothesis being tested, (4) the difference in the pattern of means for which good power is being sought, (5) the variances of the response variables, and (6) the correlations among the response variables (Table 1).
This predictor implies that it is important for the children's health professionals to inform families with older toddlers, especially those in the age group of 36 months or older about the linkage between children's age and home hazards, and to educate them to assess their homes for hazards and to take steps to eliminate the hazards.
Moreover, visual inspection of effect sizes by the 1st and 3rd authors found minimum variation across data sources for each predictor, implying less clinically-significant heterogeneity than the statistical tests suggest [ 19, 43].
Although the model using items as predictors obtained comparable r, MSE and MAD to that of Model 4 using OLS in Table 3, this model resulted in a smaller adjusted r due to a larger number of predictors, which implies a more complex model.
The threshold applies to the entire linear combination of multiple predictors, which implies that for the same amount of early weight gain, patients may be predicted to gain substantial weight or not gain substantial weight depending on the values for other characteristics included in the prediction model.
Those predictors that implied p < 0.20 were considered further in a multivariate regression analysis.
The D0.5cc 'hot spot' was identified as the most valuable predictor, which implied that TLI occurred as a serial complication, and also that the risk of TLI was most significantly related to the 'hottest' portion of the DVH; the dose distribution within the entire organ may be less relevant.
The finding that serum creatinine was a predictor for persistent hypertension implies that we could use baseline serum creatinine levels when the patients are admitted to predict women who are at risk of developing chronic hypertension in future.
The high "goodness of fit" performance of our 5-domain model and WHO's 4-domain model in the general population data, implies that the predictors of QOL that we derived from these models in multiple regression analysis are worthy of note.
