Median number of days away from work, by event or exposure leading to occupational injury or illness, 2002 Event or exposure Median days Repetitive motion 23 Fall to lower level 14 Fires and explosions 12 Transportation accidents 12 Fall on same level 9 Overexertion 8 Slip, trip, loss of balance (without fall) 7 Assaults and violent acts by persons 5 Contact with objects and equipment 5 Exposure to harmful substances 3