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 published in the literature, which is now used as a control group for patients presently receiving the alternative treatment. Such a control group clearly needs careful checking for the comparability.

Posted Date: 7/30/2012 2:21:08 AM | Location : United States

Ask an Expert

Related Discussions:- Explain literature controls, Assignment Help, Ask Question on Explain literature controls, Get Answer, Expert's Help, Explain literature controls Discussions

Write discussion on Explain literature controls
Your posts are moderated

Write your message here..

Related Questions

Comparative exposure rate, Comparative exposure rate : A measure of allianc... Comparative exposure rate : A measure of alliance for use in a matched case-control study, de?ned as the ratio of the number of case-control pairs, where the case has greater expos

Band matrix, Band matrix: A matrix which has its non zero elements arrange... Band matrix: A matrix which has its non zero elements arranged uniformly near to the diagonal, so that aij = 0 if (i - j)> ml or (j - i)> mu where aij are the elements of matrix a

Multidimensional scaling (mds), Multidimensional scaling (MDS)  is a generi... Multidimensional scaling (MDS)  is a generic term for a class of techniques or methods which attempt to construct a low-dimensional geometrical representation of the proximity matr

Homework help, Q1: The growth in bad debt expense for Aptara Pvt. Ltd. Comp... Q1: The growth in bad debt expense for Aptara Pvt. Ltd. Company over the last 20 years is as follows. 1997 0.11 1998 0.09 1999 0.08 2000 0.08 2001 0.1 2002 0.11 2003 0.12 2004 0.1

Zero-inflated poisson regression, Zero-inflated Poisson regression is  the... Zero-inflated Poisson regression is  the model for count data with the excess zeros. It supposes that with probability p the only possible observation is 0 and with the probabilit

Bootstrap, Bootstrap : The data-based simulation method/technique for the s... Bootstrap : The data-based simulation method/technique for the statistical inference which can be used to study the variability of the estimated characteristics of the probability

Em algorithm, The method or technique for producing the sequence of paramet... The method or technique for producing the sequence of parameter estimates that, under the mild regularity conditions, converges to maximum likelihood estimator. Of particular signi

Explain missing values, Missing values : The observations missing from the ... Missing values : The observations missing from the set of data for some of the reason. In longitudinal studies, for instance, they might occur because subjects drop out of the stud

Explain Genetic algorithms, Genetic algorithms: The optimization events mo... Genetic algorithms: The optimization events motivated by the biological analogies. The prime idea is to try to mimic the 'survival of the fittest' rule of the genetic mutation in

Statistics, cholscores Treatment income ($000) Patient ID low Income? ... cholscores Treatment income ($000) Patient ID low Income? 0.6 Old 21.3 2 Yes 0.17 Old 27.2 13 Yes 0.69 New 27.1 16 Yes 1.09 Old 94.8