Sentence examples for because of uncontrolled confounding from inspiring English sources

Careful analysis of these observational studies suggests that these results should be viewed with caution, because of uncontrolled confounding by indication.

The effect could be causal or because of uncontrolled confounding.

[ 16] If an expert believed that the excess number of breast cancer cases was because of uncontrolled confounding, then a sceptical (0.67, 1.5) prior could be used, giving a 95% credible interval of 0.96 to 1.91.

However, studies to date are difficult to interpret because of the unknown influence of uncontrolled confounding factors, imprecision in measurements of smoking exposure, and collinearity of pre- and postnatal maternal smoking.

There is the possibility of uncontrolled confounding leading to inaccurate assignment of PON1 status because PON1 activity may be modified to some extent by certain medications (e.g., statins), dietary habits (e.g., vitamin C and E intake), and environmental exposures (e.g., smoking) (Costa et al. 2005b; Durrington et al. 2002; Jarvik et al. 2002).

Although we adjusted for several potential confounders in the multivariable analyses, we cannot exclude the possibility of uncontrolled confounding.

Another limitation in our study is the possibility of uncontrolled confounding.

A major challenge with systematic reviews of observational studies is the possibility of uncontrolled confounding.

Still, as with any observational study, we cannot exclude the possibility of uncontrolled confounding.

In observational studies the impact of uncontrolled confounding is a major concern [ 37].

Because we cannot know if adjustment for gestational age would affect Epstein et al.'s results [ 15], it is unclear if the association with coal is unique to India or an artifact of uncontrolled confounding.