Sciatica: review of epidemiological studies and prevalence estimates. This trial was registered under identifier ChiCTR-IPR-15006370. EA showed greater short-term and long-term benefits for chronic discogenic sciatica than MFE, and the effect of EA was superior to that of MFE. However, low back pain intensity and PGI did not differ significantly at week 4. The average leg pain NRS scores decreased by 2.12 (1.70-2.53) and 0.36 (-0.05-0.78) from baseline in the EA and MFE groups, respectively, at week 28. The long-term follow-up resulted in significant differences. The difference was significant ( P < 0.001). The mean changes in the average leg pain numerical rating scale (NRS) scores were 2.30 (1.86-2.57) and 1.06 (0.62-1.51) in the EA and MFE groups at week 4, respectively. The secondary outcome measures were the low back pain intensity, Oswestry Disability Index (ODI), patient global impression (PGI), drug use frequency, and EA acceptance. The primary outcome measure was the average leg pain intensity. A 28-week follow-up of the two groups was performed. One hundred participants were randomized into two groups to receive EA ( n = 50) or MFE ( n = 50) for 4 weeks. To investigate the short- and long-term effects of electroacupuncture (EA) compared with medium-frequency electrotherapy (MFE) on chronic discogenic sciatica.
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