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Table 3 Comparison between Mg sulphate, Ozone and control groups regarding the improvement in NRS and ODI after the interventional pain procedure

From: Comparative effect of transforaminal injection of Magnesium sulphate versus Ozone on oxidative stress biomarkers in lumbar disc related radicular pain

  Mg sulphate group
(n=45)
Ozone group
(n=45)
Control group
(n=45)
P-value
After 2 weeks
NRS Improved ≥ 30% [n (%)] 29 (64.4%) 29 (64.4%) 0 <0.001*
Improved < 30% [n (%)] 16 (35.6%) 16 (35.6%) 45 (100%)
ODI Improved ≥ 15 [n (%)] 35 (77.8%) 29 (64.4%) 0 <0.001*
Improved < 15 [n (%)] 10 (22.2%) 16 (35.6%) 45 (100%)
After 1 month
NRS Improved ≥ 30% [n (%)] 35 (77.8%) 34 (75.6%) 0 <0.001*
Improved < 30% [n (%)] 10 (22.2%) 11 (24.4%) 45 (100%)
ODI Improved ≥ 15 [n (%)] 41 (91.1%) 41 (91.1%) 0 <0.001*
Improved < 15 [n (%)] 4 (8.9%) 4 (8.9%) 45 (100%)
After 3 month
NRS Improved ≥ 30% [n (%)] 36 (80%) 33 (73.3%) 0 <0.001*
Improved < 30% [n (%)] 9 (20%) 12 (26.7%) 45 (100%)
ODI Improved ≥ 15 [n (%)] 45 (100%) 44 (97.8%) 1 (2.2%) <0.001*
Improved < 15 [n (%)] 0 1 (2.2%) 44 (97.8%)
After 6 month
NRS Improved ≥ 30% [n (%)] 31 (68.9%) 0 0 <0.001*
Improved < 30% [n (%)] 14 (31.1%) 45 (100%) 45 (100%)
ODI Improved ≥ 15 [n (%)] 43 (95.6%) 0 0 <0.001*
Improved < 15 [n (%)] 2 (4.4%) 45 (100%) 45 (100%)
  1. NRS Numeric rating scale, ODI Oswestry back disability
  2. *P-value ≤ 0.05 is considered significant