CHINA'S return of positive dope tests over the last year was a fraction higher than the world average - but a high-ranking Chinese anti-doping official visiting Hong Kong defended China against accusations that their sporting success was due to the use of performance-enhancing drugs. Yang Tianli, a member of the International Olympic Committee's Medical Commission, said China has one of the strictest doping procedures in the world. Yang, the director of China's National Research Institute of Sports Medicine, added that China's success, especially from their world-beating women swimmers, has spawned jealousy from Western countries. 'This is a prejudice against Chinese and Asian athletes,' said Yang, in Hong Kong for yesterday's sports medicine summit at the Hong Kong Sports Institute. 'China is one of the toughest countries for doping control. 'The athletes who have been caught with drugs in China are the ones who have not been adequately informed about drugs and what drugs are on the banned list.' He said testing was widespread in China with 1,608 athletes tested in the last year. Of this, 24 tests were positive. This represents a percentage of 1.49, which Yang said is slightly above the world average of 1.40. Of the 24 positive tests, three were swimmers. Athletes from China's track and field, cycling and weightlifting teams were also tested. Yang and his fellow medical committee member Yang Zeyi are China's representative in the summit, which also included officials from Hong Kong and Taiwan. Both are responsible for doping control in China. Yang said he has yet to hear of any anomalies from tests done on the 16 all-conquering Chinese swimmers at last month's Asian Games in Hiroshima, suggesting that they were all clean. 'More than two million RMB was spent on doping control in China last year,' said Yang. 'Drugs is a world problem. 'The problem with drugs in China is that there is now a lot of commercialisation in sport meaning that some athletes are willing to take the risk. 'An Olympic medal is worth US$1 million and that provides a lot of inducement for athletes to cheat.' Chinese women set a host of world records at this year's world swimming championships in Rome, further fuelling the accusations from Western swimmers that their success was due to drugs. They also dominated the Asian Games swimming competition, setting one world record in the process. Weightlifting has been another sport in which China has become a world power. But their emergence was also received with the inevitable accusations of steroid use, which is believed to be widespread in the sport in many other countries. Chinese lifters set an incredible 42 world records and 55 Asian records at the Asian Games in Hiroshima. Yang said that the Chinese sports administration was strongly against the use of performance-enhancing drugs and that China are determined to crack down on cheats. He added that China had recently signed an agreement with Australia to increase exchanges between the two countries in the fight to eradicate substance-abuse. The Hong Kong summit, the first to be held in the territory, featured leading sports medicine experts from China, Taiwan and Hong Kong. It was jointly organised by the Hong Kong Centre of Sports Medicine and Sport Science of the Chinese University and the Institute.