"difference in population" is correct and usable in written English.
You can use it whenever you wish to refer to the distinction between two or more populations. For example, "Research has found a 10% difference in population between rural and urban areas."
This explainable portion is due to the difference in population demographics and disease burden within different regions.
In spite of over 100 such reports their comparative assessment is, however, difficult due to difference in population sizes, their clinical and epidemiological characteristics, different trial guidelines, and so forth [ 152].
Following a Bonferroni correction for multiple comparisons, the hypothesis of no difference in population genetic structure among P. nodorum populations sampled from different hosts was rejected for the 2004B and 2005A collections.
A difference in population density between the two areas that results in different transmission dynamics, hygiene and sanitation conditions, and behavioral patterns may explain the different findings between these two areas.
Even taking into account the difference in population, the rates of gun homicide per a hundred thousand people are 2.97 versus.07.
(Because of the difference in population sizes, non-Hispanic whites still form a plurality — about fifty per cent — of all people killed by police).
In 1787, when the constitutional convention struck the "Connecticut compromise" and awarded each state two senators, the difference in population between Virginia and Delaware was not huge.
The difference in population makeup is attributable in part to Wall Street commuters, who may prefer coastline communities like Greenwich and Darien, where they do not have to change trains at Stamford, as New Canaan commuters do.
Broward County used a more forgiving standard than Palm Beach County, and uncovered almost three times as many new votes, a result markedly disproportionate to the difference in population between the counties.
The marked difference in population growth between France and some of its neighbours up to the 1940s was attributed to a falling birth rate.
In Japan, which has very strict laws, only 11 people were killed with guns in 2008, compared with 12,000 deaths by firearms that year in the United States — a huge disparity even accounting for the difference in population.
