Sentence examples for the sample strata from inspiring English sources

The configuration of the sample strata assumed that HCV seroprevalence would vary systematically across the four strata and that prevalence estimates would gain precision.

Therefore allowance has to be made for the possibility of unknown confounders and interactions in our data associated with the sample strata.

For the purpose of creating the sample strata, the country was divided into three major regions in Israel: North, Center and South, containing 58%, 30 % and 122 % of the Arab population, respectively.

Yeboah et al (2010) [ 19] used only white race in a univariate model, in spite of the four strata (white, African-American, Hispanic and Asian) that defined the sample strata in MESA [ 8].

Therefore, the controls were selected from different settings in Granada (social centers, geriatric centers and companions of hospital patients) with the following inclusion criteria: not diagnosed for oral cancer and belonging to one of the sample strata (sex and age group).

As discussed earlier, knowing the distribution of the population in the centres and that of pupils in each stratum, it is always possible to calculate the probability of a unit being selected for sampling and to correct using inverse probability weighting, if an imbalance in the sample strata is considered necessary.

The sampling strata were defined by deployment location and apparent mental health services use, strata relevant to the parent study's primary objective.

Table 2 lists the average ash, sulfur and trace element contents for all the sampled units and within each of the sampled strata.

For the representativity of the analytical sample to this target population, several assumptions must hold among which (a) missing data on any of the analytical variables must be completely at random and (b) the distribution of weights in the sample is invariant to this change in the target population (i.e. the sampling strata are not affected by this change in the definition of the population).

Standard errors were computed that accounted for the sampling design and the individual's sampling probability from the sampling strata.

Table 1 shows the cohort, the subcohort, and the cases classified according to the sampling strata.