We noticed that, for fitted values below the IDL, there is a clear tendency to measurements being below the regression line.
For exon measurements we noticed 8 outliers and for fitted values below the IDL a clear tendency to measurements being below the regression line (Additional file 6, Figure A).
Outside this range there was a tendency for regression to the mean value of the dimension.
On the contrary in the habit of " avoidance of fried foods", the score was significantly worse, a paradox that might be explained by the very high initial score (tendency towards regression to the mean).
Meta-regression has limitations: the small number of studies, correlation between covariates and unmeasured characteristics, differences in the relationships that occur at a patient level and that may not be detected at a study level, and the tendency of regression to the mean.
Results from small placebo-controlled trials with beta-agonists, including dobutamine, and PDE3-I have been combined in a meta-regression analysis showing a tendency to an increase in mortality associated with dobutamine or high-dose dopamine (OR 1.50, 95% CI: 0.51 3.92) or PDE3-I [ 24].
Such patients have a tendency to show reductions in use of emergency care over time (that is, regression to the mean).
However, regression analysis revealed sufficient accuracy of the device, with a tendency to estimate the root canal length just short (x̄ = −0.98 ± 1.75 mm) of the apex.
In this study, we used 2R regression to estimate energy expenditure from physical activity, which exhibits a decreased tendency to over predict energy expenditure [ 27].
These conclusions are confirmed by logistic regression analysis, which shows a positive association between subjects vaccinated in 2009 and a previous tendency to receive vaccinations.
Regression analysis revealed that males who had lower perceptions of certainty of apprehension and displayed a tendency to repeat the behaviour were most likely to deliberately break crossing rules.
