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Prostate specific antigen (PSA) value is also identified as an important predictor based on forward selection where it is selected 75.9% of the time.
In all regression models risk factors were explored using univariable regression analysis and were retained in the multivariable model based on forward selection; hypothesized risk factors were included and confounders were retained based on univariable P<0.2.
Based on forward selection, age was the only significant variable.
Inclusion of additional covariates was based on forward selection and LR tests with a p-value criterion of <0.2.
Out of the 994 inclusions based on forward selection using the training data set, age was significant in the validation data set 979 times (s = 979/994 = 0.985).
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Model selection was based on forwards selection and confirmed by backwards elimination, with the fits of nested models compared by the likelihood ratio test based on asymptotic likelihood theory.
Selection is frequently based on forward or backward regression analysis in combination with a predefined p-value.
Neutrophils were gated based on forward and side scatter.
Cells were gated based on forward and side scatter.
Viable PBMC was gated based on forward and side scatter.
Our implementation operates in up- and down-swing phases which are based on Sequential Forward Selection (SFS) and Sequential Backward Selection (SBS).
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CEO of Professional Science Editing for Scientists @ prosciediting.com