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| Characteristics of discography | Positive discography | Discography negative | P |
|---|---|---|---|
| VAS during the examination | 8.92 (8–10) | 0.74 (2–0) | .003 |
| Volume injected | 1.75 mLl (13) | 2.18 mL (1.5–3) | NS |
| Disc resistance | |||
| With resistance | 6 (31.58%) | 13 (68.42%) | .014 |
| Without resistance | 7 (50%) | 7 (50%) | NS |
VAS indicates visual analogue scale; NS, no significance.
