Table 1.

Patient characteristics (N=162)

Characteristic	Value
Age (yr)	59.8±17.8
Male/female	60/102
Diagnosis	118 (72.8)
Foraminal stenosis	82
Extraforaminal disc hemiation	29
Conjoined nerve root	6
Foraminal bony cyst	1

Values are presented as mean±standard deviation or number (%).