http://www.strobe-statement.org/.
Strengthening the reporting of observational studies in epidemiology (STROBE) statement: guidelines for reporting observational studies.
cf article in BMJ
interpretation of observational studies BMJ 1994
štvrtok 22. novembra 2007
case control matching, genetic association studies
role of matching in epidemiologic studies pdf
inverse sampling Keogh 2007 IJE http://biostatistics.oxfordjournals.org/cgi/content/abstract/kxm019v1
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 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
---------------------------------------------
HILDA australian data - social survey
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
---------------------------------------------
HILDA australian data - social survey
streda 31. októbra 2007
Finnish !
to your attention
starter Helsinki uni (yliopisto)
morphological analyzer (parser) from xerox.
cf for "Minun mieheni nimi on Timo." (meaning Mon mari s’appelle Timo.) gives:
Result of Finnish Morphological Analysis :
Minun minä +PRO+GEN
mieheni mies +N+PL+NOM+PSG+PSF1
mieheni mies +N+SG+GEN+PSG+PSF1
mieheni mies +N+SG+NOM+PSG+PSF1
nimi nimi +N+SG+NOM
on olla +V+ACT+IND+PR+SG+PER3
Timo. Timo. +?
CONJUGATOR from verbix
at verbix.com there is also a list of 10000 most common used Finnish words
starter Helsinki uni (yliopisto)
morphological analyzer (parser) from xerox.
cf for "Minun mieheni nimi on Timo." (meaning Mon mari s’appelle Timo.) gives:
Result of Finnish Morphological Analysis :
Minun minä +PRO+GEN
mieheni mies +N+PL+NOM+PSG+PSF1
mieheni mies +N+SG+GEN+PSG+PSF1
mieheni mies +N+SG+NOM+PSG+PSF1
nimi nimi +N+SG+NOM
on olla +V+ACT+IND+PR+SG+PER3
Timo. Timo. +?
CONJUGATOR from verbix
at verbix.com there is also a list of 10000 most common used Finnish words
statistics resources
from DISCOVER ô long list of resources on regression etc etc .........
comparison of statistical packages Stata, SAS, SPSS,
technical reports at UCLA 2007
from australian page for statistics course/exam in radiation oncology training (PDF)
LernSTATS - german/english - sociology-psychology - java examples
- up to factor analysis, some examples intuitive
lisrel online kurs - SEM - structural equation modelling - german FU Berlin
comparison of statistical packages Stata, SAS, SPSS,
technical reports at UCLA 2007
from australian page for statistics course/exam in radiation oncology training (PDF)
statistics page by Dallal from Tufts - nice basic concepts, up to regression analysis (not so good logistic reg)
BUT involves treatise on estimation of CI for transformed data (eg log) !!!!!!!
LernSTATS - german/english - sociology-psychology - java examples
- up to factor analysis, some examples intuitive
lisrel online kurs - SEM - structural equation modelling - german FU Berlin
streda 24. októbra 2007
kuopio PhD, finnish resources
RESOURCES on FINNISH language
blog on fremdsprachen und neue medien (podcast etc) by german teacher (unfortunately no link to finnish)
On Finland and Finnish
suomi-info.de - XXX very nice site in german, includes links to Finnish culture, short course on Finnish language and resources (eg how to subscribe to YLE podcast)
finnish
finnish grammar
- book Finnish: Essential Grammar, by Karlsson /1st ed 1999, 2nd edition end Nov 2007)
sites - to be used as complementary resources for novices XXX
0. a very short finnish grammar - nice brief "one webpage" overview
2. Panu Mäkinen - English, german, structured, but some grammar concepts just given as bulky examples without explanation (eg. consonant gradation)
3. ressources pour le finnois - from forum at Inalco - dept for languages of northern and eastern europe .....
http://virtual.finland.fi/netcomm/news/showarticle.asp?intNWSAID=25831
http://www.cs.tut.fi/~jkorpela/Finnish.html
absolute starter on finnish - SUPERB - with embeded audio.:.
http://donnerwetter.kielikeskus.helsinki.fi/FinnishForForeigners/parts-index.htm
http://donnerwetter.kielikeskus.helsinki.fi/FinnishForForeigners/parts-index.htm
quiz - finnish english vocabulary
DICTIONARY + resources XXXXX
YLE radio, tv podcast !!!!XXXX how to subscribe see - suomi-info.de
maybe some resources can be found here
PhD in Kuopio
http://www.uku.fi/laake/english/forms.shtml http://www.uku.fi/laake/english/studies.shtml http://www.uku.fi/intl/english/prospective/applying.shtml#PG IMPIT cf International Master´s Program in Information Technology research at Dept of Computer science and applied mathematics Structured Documents
databases, intro, relational, Access tutorial
some INTRO resources on databases (database management systems, DMBS) especially the so called relational databases
- tutorial-like resources
1. databasics from scratch - instructional, very understandable (at geekgirls.com ....???)
2. types of databases -
flat spreadsheet / hierarchical / relational / object oriented
- a brief (minimal) theoretical intro with examples of structure and questions/queries - also (Funnel 2007, McGill Uni)
3. intro to Access - (basic relational db available as part of MS Office)
very instructional TUTORIAL - really click-by-click intro into designing creating, viewing, querying a relational database. (holowczak from Baruch College CUNY) with multiple screenshots.
4. designing and creating relational database - course/tutorial - looks comprehensible with multiple figures to describe problems with designing db, however some links broken (Newcastle 2004)
also some useful guides on software by administrators at Newcastle
eg access, excel, word, spss.
check using ACCESS and SPSS
5. Dilip´s brief intro to relationdal db (1998), schemes, screenshots + some syntax.
- tutorial-like resources
1. databasics from scratch - instructional, very understandable (at geekgirls.com ....???)
2. types of databases -
flat spreadsheet / hierarchical / relational / object oriented
- a brief (minimal) theoretical intro with examples of structure and questions/queries - also (Funnel 2007, McGill Uni)
3. intro to Access - (basic relational db available as part of MS Office)
very instructional TUTORIAL - really click-by-click intro into designing creating, viewing, querying a relational database. (holowczak from Baruch College CUNY) with multiple screenshots.
4. designing and creating relational database - course/tutorial - looks comprehensible with multiple figures to describe problems with designing db, however some links broken (Newcastle 2004)
also some useful guides on software by administrators at Newcastle
eg access, excel, word, spss.
check using ACCESS and SPSS
5. Dilip´s brief intro to relationdal db (1998), schemes, screenshots + some syntax.
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