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Comparison of the three groups with respect to salivary superoxide dismutase enzyme levels.
| Group | Mean | SD | |
|---|---|---|---|
| I | 4.73 | 3.36 | F = 64.0218 |
| II | 13.37 | 6.47 | p = 0.0000* |
| III | 23.11 | 8.11 | |
| Pair-wise comparison by Tukey's HSD post hoc procedures | |||
| Control vs. nonsmokers | 0.0001* | ||
| Control vs. smokers | 0.0001* | ||
| Nonsmokers vs. smokers | 0.0001* | ||
*Indicates 5% level of significance (p < 0.05).
HSD = honest significant difference.
