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Analysis of doping infractions in wheel-chair and non-handicapped tennis players during the 2003-2009 period.
| Non-handicapped players | Wheel Chair Players | Total | |
|---|---|---|---|
| Total Samples | 13064 | 276 | 13340 |
| Sample Average/year | 1866.2 | 39.4 | 1905.7 ± 174.5 |
| Total Doping Offences | 47 | 5 | 52 |
| Doping Offences/year | 6.7 | 0.7 | 7.4 ± 4.1 |
| Incidence Offences/sample (%) | 0.35a | 1.81a | 0.38 |
a p = 0.0001
