Table 3 Characteristics of sports competition injuries related to illegal activity compared with other high school sports-related injuries, National High School Sports-Related Injury Surveillance Study, United States, 2005–07 school years
Injuries related toillegal activity(n = 98 066)Injuries not related toillegal activity(n = 1 427 780)
Body site
    Head/face32.313.8
    Ankle16.321.7
    Knee14.516.7
    Shoulder4.98.1
Diagnosis
    Concussion25.410.9
    Contusion25.315.5
    Ligament sprain (incomplete tear)19.030.7
    Fracture12.59.8
    Muscle strain (incomplete tear)2.311.6
Time loss
    <7 days50.749.9
    7–21 days26.628.5
    >21 days8.56.6
    Medical disqualification for season10.510.2
    Required surgery5.76.9

  • Values are percentages based on national estimates. Only the most common body sites, diagnoses, and time loss categories are included.