inverse sampling Keogh 2007 IJE http://biostatistics.oxfordjournals.org/cgi/content/abstract/kxm019v1
Matching BMJ Stat notes - Bland, Altman 1994
and letter
optimal matching software - stat packages SAS, R (bipartite)
Goldstein , Andrieu 1999 on detection of interaction GE - discusses COUNTERMATCHING method
Flexible Matching Strategies to Increase Power and Efficiency to Detect and Estimate Gene-Environment Interactions in Case-Control Studies.
Original Contributions American Journal of Epidemiology. 155(7):593-602, April 1, 2002.Sturmer, Til 1,2; Brenner, Hermann 1,2
Abstract: Lack of power is a pertinent problem in many case-control studies of gene-environment interactions. The authors recently introduced the concept of flexible matching strategies with varying proportions of a matching factor among selected controls (degree of matching) to increase the power and efficiency of case-control studies. In this study, they extended the concept of flexible matching strategies to the field of gene-environment interactions. They assessed the power and efficiency of such studies to detect and estimate gene-environment interactions under a variety of assumptions regarding the prevalence and effects of the environmental exposure and the genetic susceptibility as well as their association in the population. For each set of parameters, 10,000 case-control studies were simulated using varying degrees of matching. Traditional frequency matching increased the power and precision in most scenarios, but even greater gains were often obtained by increasing the prevalence of the environmental exposure in controls above the one in cases. The authors concluded that flexible matching strategies can increase the power and efficiency of case-control studies to detect and estimate gene-environment interactions compared with traditional frequency matching and therefore might help to alleviate the notorious lack of power of these studies in specific situations.
Flexible Matching in Case-Control Studies of Gene-Environment Interactions
2004 AJE, Saunders, Barrett
Multivariate and Propensity Score Matching
Software with Automated Balance Optimization:
The Matching package for R
reducing selection bias by propensity score matching (PPT) Bo Lu 2007
in SAS - MACRO
matching software" in R - matchbalance, match, genmatch
SPSS - propensity score macro
matching for ethnicity using a panel of SNPs (pdf)
An Introduction to Matching and its Application using SAS®
The use and misuse of matching in case-control studies: the example of PCOS
Fertil Steril 2007
part of paper on "degree of matching and gain in power and efficiency of case control studies" in Epidemiology 2001
(terms frequency matching, ...)
cf counter matching - (counterintuitive matching) to increase informative pairs
example - countermatching on radiation exposure from IJE 2004
advanced ??
file:///C:/Documents%20and%20Settings/Javorsky/Local%20Settings/Temporary%20Internet%20Files/Content.IE5/K1UJG9UN/256,1,Reducing Selection Bias via Propensity Score Approach
optimal case control multivariate matching
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HILDA australian data - social survey
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