Then, using a quadratic space approximation of the solution over each triangular element, based on the reconstruction of the gradient at the three vertices, and a four-level backward discretization of the time derivative, an implicit third-order-accurate scheme is designed.
Variables will be included if significant at the 0.10 level (backward approach), with the exception of age which will be forced to entry.
To identify the factors contributing to increased serum ANGPTL2 levels, a backward multiple linear regression was performed with serum ANGPTL2 levels serving as the dependent variable.
In addition to the negative association between log BCLs and the nutritional marker of serum albumin levels, stepwise backward multiple linear regression analysis revealed positive associations between log BCLs and age and ALT levels in CPD patients.
Multivariate analysis of the parental stress levels using backward stepwise regression analysis and adjusting for spousal stress and family characteristics was carried out on the whole sample (see Table 2).
Unlike acy-1 lf) mutants, the mutation in the unc-31 gene resulted in elevated levels of backward locomotion outside of lethargus and a decrease in directed locomotion during motion bouts in lethargus.
1-BP workers had lower levels of backward digit span; correct scores in the Benton visual memory test; completed response in the pursuit aiming test; and tension, depression, anxiety, fatigue, and confusion in the POMS test than did controls matched for age and education level.
Factors possibly associated with seropositivity in humans and livestock (explanatory variables with P ≤ 0.2 in univariable analysis) were evaluated with multivariate logistic regression models (with RE at the nomadic camp level) using backward stepwise selection and a removal level for covariates at P = 0.10 based on the likelihood-ratio test (LRT).
The original stated intention was to develop PSI-MI in a multi-levelled approach, with each level being backward compatible with earlier versions.
For each level, a backward regression was run and the significance level for maintenance in the model was set at 20% (p < 0.20).
