Future studies employing this method to assess sub-region coverage should use the ATT to control for component rotation.
Furthermore, no attempts were made to control for component rotation and the authors did not quantify the reliability of the technique.
Cord traction was also significantly associated with PPH after controlling for other components.
Strengths include a setting in primary care, a cluster design, a health economic analysis, a comparison of different methods of monitoring while controlling for other components of training within the context of a quality assured structured education programme and a qualitative sub-study.
Costa et al. found that their participants with aMCI were more severely impaired on PM component than on RM component [ 7]. Thompson et al. found that participants with aMCI were still impaired on PM tasks even after controlling for RM component scores as a statistical covariate, suggesting the components were independent [ 12].
The association between the exposure and the outcome is then estimated using a logistic regression model, while controlling for (i) all component causes; and (ii) some of the component causes (selected at random).
These associations were further robust to control for other components of PM10 2.5 as well as PM2.5 and LAC, which were also associated with markers of inflammation.
To do this, a 'placebo' or sham acupuncture control would be used, to control for the components of treatment that are not specific to acupuncture, such as time and attention.
CBT participants who received problem-solving and social skills treatment components, controlling for number of sessions and other confounding variables, were 2.3 and 2.6 times, respectively, more likely to have a positive response.
First, to the best of our knowledge, this is the first epidemiologic study to investigate the effects of outdoor exposure to PM and their metal components, controlling for PAH exposure, on oxidative stress in schoolchildren.
