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Demographic characteristics of the groups.
| Variable | Control group | ChP1 | ChP2 | p* value |
|---|---|---|---|---|
| Age in years (mean ± S.D) | 46 ± 0.72 | 44 ± 0.84 | 45 ± 0.88 | >0.05 |
| Gender | 35 | 35 | 35 | >0.05 |
| Male | 17 | 16 | 18 | |
| Female | 18 | 19 | 17 |
ChP- chronic periodontitis, S.D - standard deviation, p-probability,*Chi -square test, Statistically significant at p < 0.05.
