Explanatory factors for changes in OPG, fetuin-A and NT-proBNP were found using multivariate analysis of repeated measurements with backward selection.
Three subgroups of samples within the most prevalent intrinsic subgroup of breast cancer, luminal A, were found using multivariate analyses of HR MAS MRS spectra.
On the one hand, the costs of the analysis are greatly reduced because no certified reference materials/standards are required and while on the other, important regions in the chromatographic fingerprints that are related to the phenomena being studied (e.g., discrimination/classification of two or more groups of samples) can be found using well-validated multivariate chemometric methods.
It was found using the multivariate Cox proportional hazards regression model that levels of CTC at baseline and at the first follow-up visit were the most significant predictors of progression-free and overall survival.
Only where differences in size were found, allometry was tested using multivariate regression of shape (PCA axes) on log-transformed centroid size, and homogeneity of the allometric patterns among groups was assessed using MANCOVAs with shape as the dependent variable, log centroid size as a covariate and group as a factor.
The former approach analyses patterns of relationships of several categorical dependent variables, while the latter is a tree-building technique developed to reveal complex interactions between predictors that may be difficult to find using traditional multivariate techniques.
"It is my view that when the jury comes in, what will be found is a complex multivariate situation in which the greater susceptibility of cannabis to illicit drug use is the end point of a complex mix of factors including: the neurophysiological effects of cannabis; social and peer influences; and the legal status of cannabis," he said.
In the current study, the effect of the number of chemotherapy cycles on OS was also found to be statistically significant using multivariate analysis.
A significant Programming Type × Time of Observation interaction was found for SE using a multivariate approach to repeated measures ANOVA (F 2,11) = 11.59, p ≤ 0.002).
