Medical Statistics
Long-term survival with non-proportional hazards discussed
Published in Gastroenterology Week, November 21st, 2005
"Randomized clinical trials with long-term survival data comparing two treatments often show Kaplan-Meier plots with crossing survival curves. Such behavior implies a violation of the proportional hazards assumption for treatment. The Cox proportional hazards regression model with treatment as a fixed effect can therefore not be used to assess the influence of treatment of survival," researchers in the Netherlands reported.
"In this paper we analyze long-term follow-up data from the Dutch Gastric Cancer Trial, a randomized study comparing...
Want to see the full article?
We're a pay-per-view site for premium content. If you'd like to purchase this article, it's only $3.00.
Welcome to NewsRx!
Learn more about a six-week, no-risk free trial of Gastroenterology Week
More Articles from Gastroenterology Week
- Crohn Disease
Endoscopic camera pill proves to be effective tool for diagnosing Crohn disease - Disease Associations
Overweight patients bear a higher risk for developing acute liver failure - Drug Safety
High doses of ibuprofen can cause significant GI bleeding despite its safety profile - Gastroenterology
Infectious diarrhea is a major cause of childhood mortality in developing countries - Liver Cancer
Synthetic oleanolic acid reduced the growth of liver tumors in animal model - Adverse Drug Reaction
Patients develop acute liver failure after receiving amoxicillin/clavulanate - More from this issue of Gastroenterology Week
NewsRx is Social
Follow us on your favorite social network by clicking on a button below:
Top Medical Newsletters
Awards
Best Health/Healthcare Content, 2012
Best Health/Healthcare Content, 2011
Best e-Business Site, 2010
Best e-Business Site, 2009
Best e-Business Site, 2008
Best e-Business Site, 2007
Best e-Business Site, 2006
Best Healthcare Content, 2005
Best Overall Internet Site, 2005
Best Interactive Site, 2005
Facts & Stats
NewsRx also is available at LexisNexis, Gale, ProQuest, Factiva, Dialog, Thomson Reuters, NewsEdge, and Dow Jones.
- Google 2010 PageRank: #2 Among Top Health News and Media Publications
- Google 2010 PageRank: #2 Among Top Science Publications in Biology/Physiology
- Google 2010 PageRank: #2 Among Top News and Media for the Business of Pharmaceuticals
- Amazon's Alexa 2010 PageRank: #2 News and Media Site for the Pharmaceutical Industry
