Sentence examples for a background incidence of from inspiring English sources

Over these 7.5 years, in the absence of any culling, an idealised circular area of 150 km2, with a herd density of 1.25/km2 and a background incidence of 0.08 breakdowns/herd/year, would be expected to experience 112.5 herd breakdowns.

This compares with a background incidence of 3.3% in a general population, based on a meta-analysis of the placebo treatment arms of 36 clinical trials of NSAIDs [ 9].

Using the 6-week (maximum) estimate and a background incidence of infection of 2.2% per year (based on the detection of 4/41 seropositive children with a mean age of 4.5 years), the likelihood of viremia detection would be at most 0.25%, a figure consistent with the actual measured absence of viremia detection in the control cohort.

There must be a background incidence of disease in the population even without exposure to the causative agent in question, and this must be the same disease state, with the same pathogenesis, as the responses seen with high concentration and/or long duration exposures to the agent in question.

Thus it is unlikely that there would be more than one excess case of Guillain-Barré syndrome per 340 000 vaccinated people (or three per million) given a risk window of six weeks and a background incidence rate of 1.5 per 100 000 person years.

The parameter estimates for background levels of pathogens and the secondary transmission parameter were estimated using the method outlined in Supplemental Material: Appendix 5 (online at http://www.ehponline.org/members/2008/10994/suppl.pdf) to achieve a background incidence level of 40 cases per 100,000 people per year.

We describe a series of 14 cases of GAS necrotising fasciitis in a region with a high background incidence of GAS disease[ 9].

In contrast, we found that children with a first degree relative with type 1 diabetes, with parents with higher levels of education, or who lived in an area with a higher background incidence of type 1 diabetes seemed less likely to present in diabetic ketoacidosis (see fig 2).

Several chemicals, particularly halogenated hydrocarbons, produce primarily or exclusively an increase in liver tumors in rodent strains that are characterized by a substantial background incidence of such tumors.

17 70 In parts of the world with a high background incidence of gastric cancer in the population (Korea, Japan), the risk of developing gastric cancer in LS families is also higher, suggesting the role of environmental factors.

Through serologic screening of age-matched controls, we were able to largely rule out the possibility that detection of PARV4 DNA in samples from 2 of the 12 patients was simply incidental to a high background incidence of PARV4 infection in this age group.