For example, as the prevalence in dogs becomes lower the probability of immunity on exposure is decreased.
The difference in the prevalence rates between different districts could be due to differences in hygiene practices, like drinking contaminated water and open defecation.
Both showed similar prevalence in the summer and the winter although the pattern was different in some subsets.
We want to emphasize that this first prevalence publication reports predominantly diagnostically aggregated data.
On both occasions, multimorbidity (presence of more than one condition) accounted for a quarter of the prevalence of psychiatric morbidity.
Comparisons of prevalence were performed by the z-test.
Sensitivity analysis showed that the value of prevalence was sensitive mainly to variations in vaccination and screening costs.
The prevalence rate varied between 31 and 34/100,000 livebirth.
