Table II.

Baseline demographic characteristics.

Variable	Value
No. of patients	78
No. of deteriorated patients	21
Gender (male:female)	45:33
Age (years)	37–71 (57.8)
Follow-up period (months)	36–56 (40.0)
JOA scores of initial follow-up	13–16 (14.1)
JOA scores of final follow-up	10–16 (14.0)

Values in parentheses are mean values. JOA, Japanese Orthopedic Association.