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Table 1 Changes in Numeric rating scale (NRS) in both study groups at all assessment times

From: Serum 8-isoprostane levels in patients with resistant oral lichen planus before and after treatment with lycopene: a randomized clinical trial

NRS Lycopene group (n = 10) Corticosteroids group (n = 10) T-test p value
Mean ± SD
Baseline 5.90 ± 1.85a 5.60 ± 1.43a p = 0.69
4 weeks 3.30 ± 1.42b 2.80 ± 1.23b p = 0.41
8 weeks 2.10 ± 1.20b 3.00 ± 1.56b p = 0.17
Repeated measures ANOVA p value p < 0.001* p < 0.001*  
  1. a,bDifferent superscripted letters denote statistically significant differences between different time points in each group using Bonferroni adjustment for multiple pairwise comparisons
  2. SD, standard deviation; n, number of patients
  3. *Statistically significant at p value < 0.05