The selection of these groups was based on their demographic importance, geographic dispersion, family composition and the proportion of the population experiencing socio-economic hardship [ 14], all factors that may be associated with populations most likely to be experiencing oral health disparities compared to the mainstream US population [ 5].
Indeed, a climate-dependent-demographic model without dispersion projects that many EP colonies will decline by more than 50% from their current size by 2100, resulting in a dramatic global population decline.
GIS techniques can be used to estimate number of expected cases in a population potentially exposed to air pollution, by combining dispersion models with demographic data to produce estimates of the number of people exposed to certain levels of air pollution.
Descriptive statistics in the form of frequencies, proportions, measures of central tendency and dispersion were used to summarise the socio-demographic data.
Descriptive statistics are used to determine the frequencies of the demographic and secondary outcome parameters, and to describe measures of central tendency and of dispersion, dependent on the shape of their distribution.
For descriptive statistics, analysis of frequency and central tendency and dispersion (e.g. means and standard deviations, SDs) were calculated to describe demographic characteristics and formula handling knowledge and self-reported practices.
Using spatial and tabular tools within GIS, modeled emissions from the ISC dispersion models were aggregated into spatially referenced data sets and combined with underlying census demographic data.
Demographic, clinical and biochemical study variables will be summarized using number (percentage) and measures of location and dispersion as appropriate.
Patient socio-demographic and clinical characteristics will be described by means of proportions, measures of central tendency and dispersion measures, according to the nature of the variables.
We reasoned that this scenario, if verified, would facilitate a better adaptive response to the environment, including dispersion and consequently lower population density in crowdy niche where food ressources become limited to sustain demographic expansion.
