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Table 3 Mean, standard deviation (SD) values, and results of comparison between RAE scores in the two groups as well as the changes within each group

From: Management of pain in oral lichen planus patients: a comparative pilot study

  Corticosteroids (n = 12) Laser (n = 12) P value (between groups)
Mean SD Mean SD
 Pre-treatment 19.9a 8.9 27.5a 10.7 0.096
 Post-treatment 6.3b 4.1 14.1b 8.9 0.036*
 Follow-up 5.0b 1.9 11.0b 2.9 0.067
P value (within group) 0.004* 0.038*  
  1. Different superscripts in the same column are statistically significantly different
  2. *Significant at P ≤ 0.05