Table 2.

Weight assignment of variables: “patient with change in neurological status in variable” = 2, “patient without change in variable” = 1

Factors	Value assignment
Location of apex at main curve (X 3)	1 = “Thoracic spine (T)”, 2 = “Thoracolumbar spine (T-L)”, 3 = “Lumbar spine (L)”
Cobb angle of the main curve at the coronal plane (X 4)	1 = “<100°”, 2 = “> 100°”
Scoliosis associated with thoracic hyperkyphosis (X 5)	1 = “No”, 2 = “Yes”
Level of vertebral column resected (X 6)	1 = “1 vertebra resected”, 2 = “≥2 vertebrae resected”
Number of segmental vessels ligated (X 7)	1 = “1 pair of sectional vessels ligated”, 2 = “≥2 pairs of sectional vessels ligated”
Preexisting neurologic dysfunction (X 8)	1 = “No”, 2 = “Yes”
Associated with intraspinal and brain stem anomalies (X 9)	1 = “No”, 2 = “Yes”