Sentence examples for failed to control for from inspiring English sources

In addition, all previous studies involved multiple operating surgeons and failed to control for variation in surgeon expertise.

But those studies, Mr. Schwartz writes, either failed to control for contaminating factors or were not supported by later research.

Although removal of CVCs has been advocated as an adjunctive strategy for treating patients with candidaemia, most studies have failed to control for important variables, e.g., the severity of illness and persistence of neutropenia.

In the article by Powell et al, an attempt to rigorously apply an observational design to assess the relative effectiveness of inpatient rehabilitation versus home discharge failed to control for important confounding factors.

Studies aimed at determining the contribution of beta-adrenergic receptor signaling to stress-induced lymphocyte mobilization have failed to control for hemodynamic perturbations that accompany psychological stress, exercise, and/or epinephrine infusion.

Although modest evidence exists for the importance of several psychosocial factors, studies have failed to use widely recognized measures of outcome and social support, have failed to control for time since onset, and have not used longitudinal techniques.Forty-six surviving patients were followed for 6 months after stroke.

Existing studies find support for this hypothesis because they fail to control for the presence of omitted variables.

He argues that these studies are flawed because they fail to control for other factors, such as pre-existing psychological complaints or other drug use.

Further undermining the validity of the empirical analysis, the article acknowledges but fails to control for the fact that 47% of the activist targets in the dataset cease to survive as independent companies throughout the measurement period.

Specifically, defendants argue that Dr. Hakala 1) studies the wrong days, 2) overuses so-called "dummy variables," 3) disregards prior disclosures and 4) fails to control for confounding factors.

While electrophysiological studies of tinnitus have been reported in passive, awake animals, these studies fail to control for attentional mechanisms likely to play a role in the perception of tinnitus.