Such an adaptation may arise from a rare adverse event in the selected treatment group requiring additional information.
After the second stage, the selected treatment group is compared to the control group (using data of both stages) applying the critical value of the pre-planned test.
In the final analysis, only the selected treatment group m is compared to the control group (using data of both stages).
"Flexible" second-to-first-stage ratios allow different sample size reassessments for the selected treatment and the control, for example a sample size decrease for the control, but a sample size increase for the selected treatment group.
If we fix the overall sample size in the control group, allowing for any choice of the overall sample size in the selected treatment group that increases its first stage sample size more than twofold does not lead to an inflation of α for (see Fig. 2B).
Select treatment groups showed significant increases in selenium levels in blood and tissues.
With better understanding of the underlying pathophysiology of idiopathic male infertility, careful evaluation of endocrine therapy in well-selected treatment groups and well-designed randomized, controlled trials is warranted.
In brief, we sought to answer the questions by interviewing key stakeholder groups at selected treatment sites (i.e. transplant and dialysis sites).
Figure 2 summarizes the findings by indicating all of the most highly significant GO groups for the selected treatment pair comparisons (hypergeometric probability <10−7).
Sections from five mice were selected per treatment group, with 10 fields of view per section (0.29 mm2 each) randomly analyzed, excluding necrotic areas.
