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The Activities of Superoxide Dismutase and Glutathione Peroxide, and Salivary IgA Levels in the Study Groups
| Group / Variable | Smokers | Not- tobacco user | Smokeless tobacco | P value |
|---|---|---|---|---|
| Superoxide dismutase (U/mg Pr) | 2.1±1.6 | 4.7±2.2 | 4.08±2 | <0.001 |
| Glutathione peroxidase (U/mg Pr) | 1±4.9 | 1.5±10.8 | 8.2±2.6 | <0.001 |
| IgA (ng/mL) | 175.3±166.1 | 64±105.8 | 167.7±100.5 | 0.04 |
