Table 3:

Possible clinical outcome predictors for interlaminar ESI in terms of the NASS patient-satisfaction index^a

	NASS 1 or 2 (n = 44)	NASS 3 or 4 (n = 24)	P Value
Ageb	49.1 ± 15.0	50.8 ± 12.3	.734
Sex
Male	6 (46.2%)	7 (53.8%)	.195
Female	38 (69.1%)	17 (30.9%)
Duration of LBP
<3 Months	22 (62.9%)	13 (37.1%)	.803
>3 Months	22 (66.7%)	11 (45.8%)

^aData are number of patients. The NASS patient-satisfaction index was obtained in 66 patients.

^bMean age (years).