Population and Demography
pop_demog.RmdPopulation projections
site_file$population$population_total
Total population and population at risk estimates.
site_file$population$population_by_age
Single-year age disaggregated population and population at risk estimates.
Variables
pop Total populationpar Total population at riskpar_pf Total population at risk (Pf)par_pv Total population at risk (Pv)age_lower Age lower bound (years)age_upper Age upper bound (years)
Description
Population total and age-disaggregated estimates by year for the country are sourced from the UN WPP. The spatial distribution of the population is informed using WorldPop population rasters. The spatial distribution pre-2015 and post-2026 is assumed to be that of 2015 and 2026 respectively. If the site file contains the urban-rural disaggregation, this is informed from UN WUP estimates of the proportion of the population living in urban areas. Pixels are assigned to be “urban” in descending order of population density until the implied national urban population total for that year is reached. Remaining pixels are classified as rural. Population at risk variables are defined as the population in areas with Plasmodium falciparum, Plasmodium vivax or either prevalence >0% in year 2000.
Model input demography
site_file$demography
Model input demography parameters
Variables
age_lower Age lower bound (years)age_upper Age upper bound (years)qx The probability that an individual aged x dies before
reaching age xpopulation Populationpopulation_proportion Proportion of the total population in
the designated age groupadjusted_mortality_rates Mortality rates adjusted to retain
age-structure in a modelled population of constant size
Description
Model-input demography is adjusted because the model population size is constant over time. This adjustment preserves the time-varying age structure implied by UN WPP within a constant-size model population, and is performed using the peeps R package.