When a study is retracted, ‘it can be hard to make its effects go away,’ says Sheldon Tobe, a kidney-disease specialist at the University of Toronto.
And that’s more important today than ever because retractions of scientific studies are surging.
Since 2001, while the number of papers published in research journals has risen 44%, the number retracted has leapt more than 15-fold, data compiled for The Wall Street Journal by Thomson Reuters reveal.
Just 22 retraction notices appeared in 2001, but 139 in 2006 and 339 last year. Through seven months of this year, there have been 210, according to Thomson Reuters Web of Science, an index of 11,600 peer-reviewed journals world-wide.
At the Mayo Clinic, a decade of cancer research, partly taxpayer-funded, went down the drain when the prestigious Minnesota institution concluded that intriguing data about harnessing the immune system to fight cancer had been fabricated. Seventeen scholarly papers published in nine research journals had to be retracted. A researcher, who protests his innocence, was fired.