Table 2.

Mean comparison of salivary glutathione peroxidase among the study participants

Group	Mean±SD	F	P
1	1.78±0.042	81.752	0.000
2	0.56±0.006
3	0.07±0.001
Pairwise comparison by Tukey’s Honest Significant Difference test
Comparison	Mean difference	P	95% CI
Group 1 versus Group 2	1.22	0.004	0.56–2.89
Group 2 versus Group 3	0.49	0.035	0.08–1.64
Group 1 versus Group 3	1.71	0.000	0.91–2.59

SD: Standard deviation, CI: Confidence interval, HSD: Honest Significant Difference