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Table 4 The mean severity of oral mucositis related pain according to VAS score over time during weeks 1 to 7 for CHX, polyherbal, zinc sulfate, and placebo groups

From: Prevention of radiotherapy-related oral mucositis with zinc and polyherbal mouthwash: a double-blind, randomized clinical trial

Week

Groups

P-value

CHX

Herbal

Zinc sulfate

Placebo

1

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

1.000

2

0.76 ± 1.36

0.00 ± 0.00

0.29 ± 1.21

1.62 ± 1.75

0.002a

3

1.58 ± 2.06

0.71 ± 1.36

1.00 ± 1.69

3.00 ± 2.28

0.009a

4

3.00 ± 2.29

1.53 ± 1.97

1.71 ± 2.26

4.33 ± 2.28

0.005a

5

4.68 ± 2.82

2.42 ± 2.45

2.47 ± 2.67

5.13 ± 2.19

0.006a

6

6.06 ± 2.46

3.12 ± 2.85

2.94 ± 3.07

6.40 ± 2.47

0.001a

7

6.94 ± 2.62

4.00 ± 3.61

3.58 ± 3.71

7.60 ± 2.58

0.001a

  1. Data are based on mean ± SD
  2. The bold values in this table indicates statistically significant difference between four study groups in weeks 2-7, according to VAS scale
  3. aStatistically significant