Considering the large number of different clinical document types, their variability across institutions, specialties, note types, and even individuals, and the variable prevalence of PHI, this evaluation would certainly require significant resources.
The diagnostic sensitivity of the IHA at admission is only 56%, and the variable prevalence of background seropositivity in areas where melioidosis is endemic reduces its specificity (62 – 62 ).
The three patient study cohorts (n = 500) include pre-dialysis patients (200), hospital haemodialysis (200) and home haemodialysis patients (100) from geographically distinct NHS sites, across the country and with variable prevalence of home haemodialysis.
Meadows were among the most invaded vegetation types, woodlands the least, and shrublands had variable prevalence of exotics depending on the specific type of shrubland.
By design, the centres recruited into the study, have variable prevalence of HHD and categorised to low (<3%), medium (5-85-8%nd high (>8%) prevalence centres.
Obviously, the percentages of idiopathic forms in the various studies are influenced by the variable prevalence of infectious and non-infectious entities in different parts of the world as well as by the environmental, racial, and socioeconomic factors affecting the populations studied.
These results are in line with the perspective of diabetic patients as a heterogeneous population with increased but variable prevalence of atherosclerosis and cardiovascular events [ 25, 26].
In Sweden, predominantly Rickettsia helvetica, at a variable prevalence of 1.7 17.3 % and in one case also Rickettsia sibirica, have been detected in I. ricinus ticks gathered from several parts of the country [ 3, 4].
Thus, it is likely that many fetuses with Down's were aborted electively and that variable abortion rates contribute to the variable prevalence of birth rates.
Due to their functional characteristics, most of these genes are very appealing from both biomedical and evolutionary perspectives, supporting the idea that the variable prevalence of some diseases among ethnic groups is in part linked to environmental conditions.
