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Passenger position in the care,use of seat belt,and the presence of a head restraint showed no significant relationship with findings.Rotated or inclined head position at the moment of impact was associated with a higher frequency of multiple symptoms(p=0.045 and 0.008)with more severe symptoms and signs of musculoligamental cervical strain(p=0.048 and 0.038) and of neural,particular radicular(p=0.031 and 0.019),damage.Unprepared occupants had a higher frequency of multiple symptoms(p=0.031)and more severe headache(p=0.046).Rear-end collision was associated with a higher frequency of multiple symptoms(p=0.006),especially of cranial nerve or brainstem dysfunction(p=0.00003).Three features of accident mechanisms were associated with more severe symptoms;an unprepared occupant;rear-end collision with or without subsequent frontal impact;and rotated or inclined head position at the moment of impact. |
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