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Table 2: Possible clinical outcome predictors for interlaminar ESI at short-term follow-up^a
Improvement (n = 63) No Improvement (n = 18) P Value
Age^{^b} 50 ± 13.5 49.6 ± 17.6 .914
Sex 
    Male 10 (62.5%) 6 (37.5%) .175
    Female 53 (81.5%) 12 (18.5%) 
Duration of LBP 
    <3 Months 32 (78.0%) 9 (22.0%) 1.000
    >3 months 31 (77.5%) 9 (22.5%) 
a Data are number of patients.
b Mean age (years).

	Improvement (n = 63)	No Improvement (n = 18)	P Value
Age^{^b}	50 ± 13.5	49.6 ± 17.6	.914
Sex
Male	10 (62.5%)	6 (37.5%)	.175
Female	53 (81.5%)	12 (18.5%)
Duration of LBP
<3 Months	32 (78.0%)	9 (22.0%)	1.000
>3 months	31 (77.5%)	9 (22.5%)