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Berlin (Reuters): Over 30% of athletes who competed at the 2011 world championships admitted to having used banned substances in the past, according to a World Anti-Doping Agency-commissioned study released on Tuesday.
The study, conducted by researchers from Germany’s University of Tuebingen and Harvard Medical School in 2011, found that more than 30% of world championship participants and over 45% of athletes at the 2011 Pan-Arab Games said they had taken banned drugs.
The researchers asked a total of 2,167 athletes whether they had used banned substances. A combined total of 5,187 athletes competed at those two events.
The 2011 world athletics championships were held in Daegu, South Korea while Qatar hosted the Pan-Arab Games that year.
A process of indirect questioning was used for the study titled “Doping in Two Elite Athletics Competitions Assessed by Randomized-Response Surveys” in order to guard the athletes’ anonymity.
More than 90% of athletes asked to take part agreed to do so.
Only 0.5% of drugs tests in Daegu were positive, while the figure was 3.6% at the Pan-Arab Games.
“The study shows that biological tests of blood and urine reveal only a fraction of doping cases,” said Harrison Pope, Harvard Medical School professor.
“As described in the publication this is likely due to the fact that athletes have found numerous ways so as not to be caught during tests.”
The study’s release had been delayed for years as the researchers wrangled with the World Anti-Doping Agency (WADA) and the international association of athletics federations (IAAF) over how it was to be published, researchers said.
It has now been published in Sports Medicine magazine. WADA could not be immediately reached for comment.
Athletics is desperate to improve its tarnished image after a doping scandal led to the banning of Russia’s track and field team from the 2016 Olympic Games in Rio de Janeiro.
More than 100 athletes have been found to have used drugs at the Beijing 2008 and London 2012 Olympics during re-tests conducted last year by the International Olympic Committee.
