Economically
country classification
The economics states
are established among the means of GNI-PPP according the administrations of the
International Monetary Fund (IMF); the World Bank (WB) and the Central
Intelligence Agency (CIA) [13-15]. The difference concerning the same country
can be considerable among the data origin. These variations are explaining by:
·
GNI-PPP
is estimated
·
Anterior
projection of an economic crisis changes GNI-PPP data
·
The
estimation of the population included in the local population
·
The
choice elements for GNI-PPP evaluation have some subjective part.
These data must be
taken with precaution
Economically Country is
divided according to the gross national income (GNI) per capita 2016, Atlas
method and PPP [15].
·
Estimated
to be low income ($1,005 or less)
·
Estimated
to be lower middle income ($1,006 to $3,995)
·
Estimated
to be upper middle income ($3,956 to $12,235)
·
Estimated
to be high income ($12,236 or more).
Gross
national income (GNI), Per capita, Purchasing power parity (PPP)
PPP is purchasing power
parity; an international dollar has the same purchasing power over GNI as a
U.S. dollar has in the United States. PPP exchange rates are used to account
for the local prices of goods and services not traded internationally. However,
PPP is used to compare across national accounts, not for making international
poverty comparisons [15].
Cancer
incidence
Incidence is the number
of new cases that occurs during a given period of time in a specified
population. It can be expressed as an absolute number of cases per year or as a
rate per 100,000 persons per year. The rate provides an approximation of the
average risk of developing a cancer. Cancer incidence data presented are based
on the most recent data available at IARC. GLOBOCAN 2012 provides a global
profile of cancer that has been developed using a number of methods that are
dependent on the availability and the accuracy of the data. National sources
are used where possible, with local data and statistical modeling used in their
absence.
Population
Standard population
(POPst) is determining to Senegal population (Western Africa) with 14,668,522
persons. Namibia population is estimated to 2,484,780 persons. Population
estimates for this country explicitly take into account the effects of excess
mortality due to AIDS; this can result in lower life expectancy, higher infant
mortality, higher death rates, lower population growth rates, and changes in
the distribution of population by age and sex than would otherwise be expected.
Population compares estimates from the US Bureau of the Census [16]. Based on
statistics from population censuses, vital statistics registration systems, or
sample surveys pertaining to the recent past and on assumptions about future
trends.
Provisional
budget (thousands of U.S $)
The World Health
Organization (WHO) emphasizes that, when developing national strategies for
controlling cancer, countries should consider the following four broad
approaches based on their economic development:
·
The
primary prevention
·
The
early detection and secondary prevention
·
The
diagnosis and treatment
·
The
palliative care.
The provisional budget
is establishing among the guidelines developed by WHO for regional and national
cancer control programs according to national economic development. However, an
International Atomic Energy Agency Report suggested that in developing
countries at least 60% of cancer patients require radiation treatment [17].
Radiotherapy is one of the main components of modern cancer treatment and requires
substantial capital investment, trained professionals in several disciplines,
high precision equipment and a particular external and internal organizational
structure. In High Incomes Countries, the healthcare costs can be as much as
8.4% (UK in 2007) to 18% (USA in 2009) of a country’s gross domestic product
[18]. Cancer consumes about 5-10% of the global healthcare budget, of which
radiotherapy only consumes about 5%; thus, more than 50% of cancer patients
requiring radiotherapy in low and middle-income countries lack access to
treatment. A benchmark of between 400 and 500 patients per treatment unit per
year has been used to calculate machine throughput in several reports. The
benchmark of 450 patients per machine, which corresponds to about 8 operating
hours per day, seems adequate for High Incomes Countries. For scenarios where
radiotherapy demand is not satisfied, a treatment day of 10 h optimizes the
utilization of equipment and decreases the number of machines needed. But, the
range of needs currently covered varies from 0% and 3-4% in Low Incomes
Countries in Latin America and Africa up to 59-79% in Up-Middle Incomes
Countries in Europe-Central and Asia. However, in this study, in order to found
the best cost-effective methods to prevent and treat cancer, the number of
machines needs is establishing among 3 millions of peoples and not by the
number of cancer cases, according to the weakness of the countries incomes
[19,20].
Standard
budget for 5 years (S0)
Standard budget for 5
years (S0) is estimated using a population of 1,000,000 persons in
Senegal (POPst). Senegal has 8361 new cancer cases with a means GNI-PPPst of
US$ 2,551 referred to the year 2016 (low middle income country), according the
administrations of the International Monetary Fund (IMF); the World Bank (WB)
and the Central Intelligence Agency (CIA). Estimation budget is taken into
account the weakness of the countries incomes.
Standardized
rapport (R0)
Standardized rapport (R0),
among the GNI-PPP, CI and the number of the population, is calculated.
Standardization simplifies comparisons of GNI-PPP and cancer incidence rates
among populations.

Note:
For Radiotherapy equipment, R0 = GNI-PPP X POP / GNI-PPPst X 3 million peoples;
Senegal has installed two new radiotherapy machines in 2017. Radiotherapy
equipment is estimated to US$ 2,500,000.
For Prevention and
screening infrastructure, R0 =GNI-PPPX POP / GNI-PPPst X 3 million peoples.
·
R0=
Standardized rapport among the GNI-PPP, CI and the number of the population
·
GNI-PPPst=
Standard Gross National Income Per capita Purchasing Power Parity in Senegal
·
GNI-PPP=
Gross National Income Per capita Purchasing Power Parity of interest
·
CIst=
Standard Cancer Incidence in Senegal
·
CI=
Cancer Incidence of interest
·
POPst=
Standard Population in Senegal
POP= Population of interest