Sentences with phrase «perform separate analyses»

A total of 48 studies were excluded from the database because they combined all minority children into a nebulous «nonwhite» category, failed to include a comparison group consisting of white children, or did not perform separate analyses with children disaggregated from adults.

There are only a handful of labs that do not pool samples and perform separate analyses on each sample submitted for testing.

Dr. Grant and colleagues also performed a separate analysis of data from eight studies — including 838 patients — assessing nausea and vomiting as the main outcome of interest.

When the researchers performed a separate analysis of those using HRT and those not using HRT, there was no consistent relationship between retinol intake and fracture risk among those using HRT, while multivariate analysis yielded a statistically significant 252 percent increased risk in the highest quintile of vitamin A intake among women not using HRT.9

We performed separate analyses for stand age groups, provinces, ecozones, elevations, and tree size classes.

Not exact matches

To account for this difference in their analysis, the researchers performed statistical adjustments and also assessed outcomes for separate age groups, divided into five - year intervals.

In a separate analysis, the researchers looked at more than 1000 animal research papers produced by the five institutes that performed best in biomedical sciences in the United Kingdom's 2008 Research Assessment Exercise.

When separate analyses were performed for psychiatric disorders diagnosed during childhood (0 - 19 years) and in young adulthood (≥ 20 years), the investigators found that the risk estimates were not markedly changed, indicating that the increased risks persist into adulthood.

Separate analyses for studies that looked only at type 2 diabetes (T2D) participants were performed.

By integrating the ion mobility and mass spectrometry approaches, the team developed an instrument capable of performing rapid, ultrasensitive analyses of extremely complex materials and of separating, identifying, and characterizing species indistinguishable by mass spectrometry alone.

This new meta - analysis seeks to update and expand both Gini and Pozzoli's and Reijntjes and colleagues» meta - analyses3, 12 by (1) including the subsequently published studies that allowed to estimate the risk for psychosomatic problems in children and adolescents who are bullied by peers (ie, cases) compared with nonbullied peers (ie, controls), (2) performing separate meta - analyses of longitudinal and cross-sectional studies, and (3) testing for potential moderators of variation in the magnitude of effect sizes.

RESULTS: Two separate random effects meta - analyses were performed on 6 longitudinal studies (odds ratio = 2.39, 95 % confidence interval, 1.76 to 3.24) and 24 cross-sectional studies (odds ratio = 2.17, 95 % confidence interval, 1.91 to 2.46), respectively.

If appropriate, we will perform separate meta - analyses for each primary and secondary outcome by combining results of studies using a random effects meta - analysis with a 99 % CI.

Separate factor analyses were performed for the job characteristics, personality variables, coping scores and the outcomes.

If some primary studies report an outcome as a dichotomous measure and others use a continuous measure of the same construct, we will convert results for the former from an OR to a SMD, provided that we can assume the underlying continuous measure has approximately a normal or logistic distribution (otherwise we will perform two separate analyses).

Given the nested structure of our data (i.e., working days nested within employees), we performed two - level path analyses using Mplus version 7.3 (Muthén and Muthén, 2012), in which we separated within - and between - components (Preacher et al., 2010).

However, it was not feasible to perform meaningful separate path analyses by group.

In total, four stepwise hierarchical regressions were performed: one predicting school absences and separate hierarchical regression analyses for each factor of the SASC - R because results of a multivariate hierarchical regression analysis were significant, Wilk's lambda, F (3, 62) = 6.24, p <.01.

The associations between the level of maternal relationship satisfaction and infectious disease in the group of < 6 - month - old infants were first tested by performing separate bivariate logistic regression analyses for each of the eight infectious diseases as the dependent variable, using the level of relationship satisfaction as the predictor variable.