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Table 2 Analysis of gender differences within doping infractions in the professional tennis circuit during the 2003-2009 period.

From: Epidemiological analysis of doping offences in the professional tennis circuit

  Female Players Male Players p value
Total Samples 4967 8373  
Sample Average/year 709.5 ± 178.0 1196.1 ± 91.3  
Total Doping Offences 7 45  
Doping Offences/year 1.0 6.4  
Incidence Offences/sample (%) 0.14 0.53 0.0004
Age Average of Offenders 24.1 ± 4.5 27.3 ± 4.5 0.09