Table 2

Age and duration of symptoms among patients who avoided surgery and those who eventually underwent surgery after the administration of a selective nerve root block (N = 50).

Variable	Surgery Avoided
	Yes				No
	n	Min	Max	Median	n	Min	Max	Median
Age, y	42	19	69	43.0	8	27	72	36.0
Duration of symptoms, d	42	1	60	14.0	8	7	30	15.0