Additionally, using simple rock mechanics principles, an approach for the quantification of the rock mass properties involved in the analyses is described, which tries to obtain the equivalence between the stratified rock mass and the sum of the distinct rock mass elements (stratification planes and internal rock mass).
The complex nature of the survey design, including such elements as stratification and clustering, was considered in the trend analysis and descriptive statistics of the study population.
Schools were selected using probability proportionate to size and that there was an element of disproportionate stratification to allow analysis at local health board (LHB) level.
Just as in the major EBFS that have in common some variation of the stratified sampling methodology, we attempted to explore the three elements of the stratification process present in Ambrosini et al. [2]: category, size and location of establishments.
In combination with other risk factors, FH is recognized as an important element in the risk stratification procedure.
Thus, expansion of particles in size and the stratification of elements happen (Fig. 5).
The elements of risk-stratification may include pretreatment PSA, PSA velocity, Gleason score, volume of tumor or stage, 36– 38 PSA velocity or total value, 29, 39 PSA nadir and time to recurrence after therapy 40, 41 and possibly the presence of circulating tumor cells, 42 as all of these have been shown to be associated with increased risk of progression or death from prostate cancer.
Our stratification of program elements with implementation predictors can provide a template for future exploration of treatment fidelity.
All analyses account for the stratification and clustering elements of the survey design, with the exception of the descriptive statistics covering the cross-tabulation of self-identified and socially-assigned ethnicity.
Simple randomisation is used for the first 12 patients followed by minimisation with a random element (p = 0.8) and using stratification factors: age (< 40 or ≥ 40 years), gender, recruitment site and baseline activities of daily living (ADL) hip outcome score (HOS) subscale (< 65 or ≥ 65).
