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Table 2 Comparison of GPE after treatment in the two groups (n, %)

From: Transforaminal epidural steroid injection combined with radio frequency for the treatment of lumbar disc herniation: a 2-year follow-up

Time Group P
T (n = 110) TR (n = 120)
1 month 88 (80.0%) 98 (81.7%) 0.715
3 months 83 (75.5%) 99 (82.5%) 0.042
6 months 78 (70.9%) 91 (75.8%) 0.008
12 months 61 (55.5%) 82 (68.3%) 0.015
24 months Total 49 (44.5%) 76 (63.3%) 0.030
Without further surgery 21 (29%)n = 72 56 (58%) n = 95 0.013
After open surgery 28 (80%)n = 38 20 (80%) n = 25 0.577
  1. Notes: GPE results: percentages of patients with score ≥ 5. Data are presented as numbers (%) of patients. Group T: TFESI; Group TR: TFESI combined with RF. Group T compared to Group TR, *P < 0.05
  2. Abbreviations: GPE global perceived effect, TFESI transforaminal epidural steroid injection, RF radio frequency