Prevented fraction, Advanced Statistics

Prevented fraction is a measure which can be used to attribute the protection against the disease directly to an intervention. The measure can given by the proportion of disease which would have occurred had the intervention not been present in population  which can be given as follows

1336_prevented fraction.png 

here PAI is the risk of the disease in absence of the intervention in the population and PI is the overall risk in the presence of the intervention.

Posted Date: 7/31/2012 3:07:54 AM | Location : United States







Related Discussions:- Prevented fraction, Assignment Help, Ask Question on Prevented fraction, Get Answer, Expert's Help, Prevented fraction Discussions

Write discussion on Prevented fraction
Your posts are moderated
Related Questions
Multimodal distribution is the probability distribution or frequency distribution with number of modes. Multimodality is frequently taken as an indication which the observed di

Behrens Fisher problem : The difficulty of testing for the equality of the means of the two normal distributions which do not have the equal variance. Various test statistics have

Pie chart is an extensively used graphical technique for presenting relative frequencies related with the observed values of the categorical variable. The chart comprises of a cir

need answers to questions in book advanced and multivariate statistical methods

In the experimental studies, the collection of individuals to which the experimental process of interest is not applied. In the observational studies, most often used for a collect

Historical controls : The group of patients treated in the past with the standard therapy, taken in use as the control group for evaluating the new treatment on the present patient

Literature controls : The patients with the disease of interest who have received, in the past, one of two treatments under the investigation, and for whom the results have been pu

Confidence interval : A range of the values, calculated from the sample observations which is believed, with the particular probability, to posses the true parameter value. A 95% c

Linked micro map plot is a plot which provides the graphical overview and the details for spatially indexed statistical summaries. The plot shows the spatial patterns and statisti

Likert scales is often used in the studies of attitudes in which the raw scores are based on the graded alternative responses to each of a series of queries. For instance, the sub