Table 2.

Findings relevant to the Canadian C-Spine Rule for the 3633 study patients

Finding	No. (%) of patients
From history
Dangerous mechanism	1125 (31.0)
Paresthesias in extremities	327 (9.0)
Simple rear-end motor vehicle collision	542 (14.9)
Ambulatory at any time	1320 (36.3)
Immediate onset of neck pain	1486 (40.9)
From physical examination
Sitting position in emergency department	558 (15.4)
Midline tenderness of the cervical spine	1294 (35.6)
Able to rotate neck	1531 (42.1)
Immobilization required	1909 (52.5)