Table 2.

Comparison of outcome measures (mean ± standard deviation) in patients with different affected disc levels and different durations of symptoms.

	Clinical Outcome (in %)	Satisfaction Rats
Affected disk	p = 0.771 a	p = 0.822 a
L5/S1	78.60 ± 19.14	8.51 ± 1.77
L4/L5	80.97 ± 13.50	8.74 ± 1.48
L5/S1 + L4/L5	78.00 ±23.84	8.43 ± 2.22
Duration of symptoms	p = 0.282 a	p = 0.317 a
<3 months	82.24 ± 15.65	8.88 ± 1.23
3–12 months	75.91 ± 21.17	8.23 ± 2.27
>12 months	75.96 ± 24.04	8.12 ± 2.34

^a Kruskal Wallis test.