Table 1.

Percentage of patients with ASIA grade at ER discharge and resultant one year ASIA improvements

ASIA Grade	Injury type	Definition Of ASIA Grade	TSCI patients with ASIA Grade at time of Discharge*	ASIA Grade one year improvement rates (≥ 1 Grade level)**
Grade A	Complete	Complete sensorimotor loss	36.4%	25.1%
Grade B	Incomplete	Complete motor loss with incomplete sensory loss	13.8%	71.1%
Grade C	Incomplete	Motor function is preserved, but more than 50% of key muscles below the neurological level have a muscle grade < 3	11.9%	78.8%
Grade D	Incomplete	Motor function is preserved but the at least 50% of key muscles below the neurological level have a muscle grade ≥ 3	37.6%	14.1%
Grade E	Normal	Motor and sensory functions are normal	0.3%	N/A

ASIA: American spinal injury association

^*:within each of the ASIA grade rows, there is the percentage of total TSCI patients at the time of hospital discharge with that specific ASIA grade injury out of all TSCI patients

ER: emergency room; TSCI: traumatic spinal cord injury

^**:percentage of patients who have improved ≥ 1 ASIA grades from their original ASIA grade assignment (column 1) at one year post-discharge. Grade B and C injuries have the highest chance of improvements at 71.1% and 78.8%, respectively^[26,27]