Additionally, our results may differ due to geographic differences in the population sampled, as the authors focused on one city within England.
The differences in the population of different components were not of significance.
These differences may be explained by sampling differences (both in terms of sampling techniques or collection sites), or by differences in the population between different years.
These differences observed between different studies may be attributed to differences in the population tested and to the test protocol itself especially the positioning of the subject.
These experiments revealed differences in the population of DFTD in different regions of Tasmania.
Smoothing methods need to consider and adjust for differences in the population size (denominator) for different geographic units.
The differences with our study could be related to differences in the population studied (workers vs. general population), different prevalence of tobacco consumption, age or dependence.
There were no significant differences in the population numbers of Agrotis segetum among the three different landscapes.
Differences in the population profiles across countries may therefore result in different estimates even if the current disease incidence is comparable.
"These effects are so large, it overcomes these differences in the population," Dr. Howard said.
The strata are not sampled at the same rate as there are large differences in the population of each strata.
