Therein, we test for the impact of study quality, time effects, and regional differences.
This study was conducted to explore the impact of study design factors on the rate ratio.
In addition, specific statistical methods to identify publication bias and to quantify the impact of study size on results were implemented in the present report.
There was no obvious impact of study sample size with a p = 0.846 for Egger's test (Additional file 1: Fig. S2).
For each effect size, we consider the impact of study quality, observation period, regional effects, and publication bias as explanatory variables in a regression model.
Studies were sorted according to their finalization and start year to allow evaluation of the impact of study realization time on study variables.
Here, the impact of study design parameters on lowest NOAEL distributions and consequently on TTC values was analyzed in a database on 423 Cramer class III pesticides.
However, existing research, such as research on the impact of study abroad programs on learners' L2 skills, has produced mixed findings.
The intent of this series of studies was to evaluate the impact of study design on the proarrhythmic concentration predicted by this model.
First, include systematic assessment of a wide range of psychoactive substance use throughout the trial and evaluate the impact of study treatments on use of all classes of drugs.
Despite the spontaneous adverse drugs reactions reporting may be influenced by the knowledge of the treatment, the potential impact of study design was always ignored to estimate the true risk of these agents.
