Sentences with phrase «average cluster size»
We inflated this sample size by a design effect of 1.18 to 210 infants per trial arm to allow for correlation between responses within the same cluster (that is, maternal and child health centre), 28 assuming an average cluster size of seven (the number of eligible mothers attending each centre) and an intracluster correlation coefficient of 0.03.
https://www.bmj.com/ Not exact matches
But one region consistently becomes quieter than average: a grape - size cluster of neurons almost dead center in the brain known as the thalamus.
Census tracts within a nonmedical exemption cluster were 2.5 times more likely to be within a pertussis cluster, even after accounting for population characteristics including racial demographics, population density, household income, average family size, percentage of residents with a college degree and location within a metropolitan area.
Left side: 2D electron momentum map of argon clusters with an average size of 3500 atoms showing a pronounced central distribution attributed to the ionization of Rydberg atoms with the detector field.
«Rich groups of galaxies like the Coma Cluster are very, very rare, but there are quite a few galaxies the size of NGC 1600 that reside in average - size galaxy groups,» Ma said.
The average number in a group varied between species but was always clustered around five distinct sizes (Biology Letters, DOI: 10.1098 / rsbl.2017.0490).
In California, both NME and pertussis clusters were associated with factors characteristic of high socioeconomic status such as lower population density; lower average family size; lower percentage of racial or ethnic minorities; higher percentage of high school, college, or graduate school graduates; higher median household income; and lower percentage of families in poverty.
The instrument cluster is the same as the outgoing model, seat cushioning is quite good and the rear seat is comfortable for 3 average sized persons.
The design effect was computed following Muthén (2000) and is expressed as d = 1 - ρ (c - 1), where ρ is the average intraclass correlation -LRB-.24) and c is the common cluster size (i.e., the average number of mothers per centre, 2.6).