Sentence examples for a proportion of clusters from inspiring English sources

We derived an adaptation of the VIF from the minimum variance weights correction to be used in case the imbalance can be a priori formulated such as "a proportion of clusters actually recruit a proportion of subjects to be included ".

Let us assume that the cluster size inequality corresponds to a Pareto-like distribution, say that in each arm a proportion of clusters actually recruit the proportion of patients to be recruited (which implies γ ≤ τ).

In South Africa for example, a one year study showed a proportion of clustering of 50% among gold miners [ 18].

Cluster thinning is an agronomic practice in which a proportion of berry clusters are removed from the vine to increase the source/sink ratio and improve the quality of the remaining berries.

A proportion of these clusters may constitute undetected outbreaks; however, this can only be determined once reliable baseline data have been obtained.

We derived an adaptation of the VIF, which should be used when the imbalance is a priori hypothesized to be "a proportion of γ clusters will actually recruit a proportion τ of the subjects to be included".

Then, using expression (9), we calculated the expected power with such a sample size, with a proportion of γ clusters actually recruiting a proportion τ of the patients to be included.

Interventions aimed at improving quality of care and access to services are also often ethically and politically challenging to withhold from a proportion of participant clusters (or to withdraw the intervention as would occur in a cross-over design) [ 23].

A proportion of the cluster A isolates isolated after 1988 was statistically different from that of isolates before 1989 (P < 0.01, by Fisher's exact test).

This criterion possibly introduced a bias toward smaller differences in treated vs. untreated groups in cases where treatment caused a shrinkage of a substantial proportion of clusters to <3 pixels; however, since this set-point would rather lead to an overestimation of average cluster size in the treated groups, the statistical significance of detected differences would not be undermined.

In the NKI2, Wang and TRANSBIG data sets, tumors were frequently assigned to groups with disproportionate numbers of ER positive and negative tumors with approximately equal frequency, though the TRANSBIG data set had a higher proportion of clusters with a 3 or more fold difference in the proportion of ER negative tumors in one of the cluster pairs.