The mean BHIs in all tested arteries in each patient was used to group patients into the higher vs lower mean BHI subgroups, using the median value as a cutoff.
For this analysis, eating psychopathology and compulsive exercise variables were recoded into two subgroups using a median split.
For explorative subgroup analyses of patients psychologically at risk, participants were post hoc divided into two subgroups using a median split of a composite score for baseline anxiety and negative mood [ 5].
We estimated the effects of the tax increase on infection rates in the general population and within specific race/ethnicity and age subgroups using mixed models accounting for temporal trends and median income.
We decided to examine DIF (i.e., homogeneity across different subgroups) using gender, type of instruction, and the medians of the bMCU measure, of age, and of intelligence as split variables.
Median PFS and OS were estimated by Brookmeyer and Crowley method and compared between subgroups using a Wald χ test.
The weighted median number of miRNAs/Mb in each CNV subgroup is shown in Table 1 and was compared among different pairs of CNV subgroups using the Wilcoxon rank-sum test.
Such subgroups use vocalizations to maintain contact with, or to locate other subgroups when separation distances are large.
We then performed correlation and univariate CPH analyses on the delta-high (delta-value > median) and delta-low (delta-value ≤ median) subgroups.
Median values were used for subgroup analyses by age, serum glucose concentration, pretreatment systolic blood pressure, treated systolic blood pressure, and hypertension duration.
