Results for: publication bias
A Foolish Consistency
A foolish consistency is the hobgoblin of little minds, adored by little statesmen and philosophers and divines. — Ralph Waldo Emerson (1803–1882) It is odd isn’t it? Large numbers of quality studies published in the best peer review journals consistently showing the same or similar effect and no contradictory studies. Despite the emphasis on evidence-based medicine, the entire literature is dismissed as...
When the popularity of new surgical procedures outpaces science
In science- and evidence-based medicine, the evaluation of surgical procedures represents a unique challenge that is truly qualitatively different from the challenges in medical specialties. Perhaps the most daunting of these challenges is that it is often either ethically unacceptable or logistically impossible to do the gold-standard clinical trial, a double-blind, randomized placebo trial for an operation. After all, the “placebo” in...
Iraq civilian deaths II: Summing up
Call me naive, but I did not expect the volume or the emotional depth of the responses to the Iraqi civilian death post. I thought many would respond to the new NEJMed survey as I did; wondering about the validity of the previous surveys and recognizing that they have a validity problem. And, that there is a question about what is printed...
Another Acupuncture Claim
News bulletin on BBC NEWS International version, 8 Feruary 2008:“Acupuncture ‘boosts IVF chances.’ Acupuncture may increase the success rates of fertility treatment, according to a study. “ (Manheimer E, Zhang G, Udoff L, Haramati A, Langenberg P, Berman BM, Bouter LM. Effects of acupuncture on rates of pregnancy and live birth among women undergoing in vitro fertilisation: systematic review and meta-analysis. BMJ....
Homeopathy and Evidence-Based Medicine: Back to the Future Part V
Homeopathy and Science: Discussion, Summary and Conclusions I was not surprised by a couple of the dissenting comments after Part IV of this blog. One writer worried that I had neglected, presumably for nefarious reasons, to cite replications of Benveniste’s results; another cited several examples of “positive” homeopathy studies that I had failed to mention. I answered some of those points here....
The Iraqi Civilian War Dead Scandal
This is a story about a story and a story or two within that story. The first story is one of faulty epidemiology – data collection in a war zone. The first inside one is how medical news and journals affect not only national news, but are being used as political weaponry, to affect elections , and to change history. Within that...
Science by press release: A helmet to fight Alzheimer’s disease?
Recently, I’ve had a number of people bring to my attention a news story that has apparently been sweeping the wire services and showing up in all sorts of venues. It is, on its surface, a story of hope, hope for the millions of elderly (and even the not-so-elderly) who are or will be afflicted by that scourge of the mind, memory,...
Snake Oil Science
For my first blog entry, I wanted to write about something important, and I couldn’t think of anything more important than a recent book by R. Barker Bausell: Snake Oil Science: The Truth About Complementary and Alternative Medicine. If you want to understand how medical research works, if you want to know what can lead patients and scientists to false conclusions, if...