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Comparison of mean plaque index among healthy and chronic generalized periodontitis patients
| Groups | n | PI | ||
|---|---|---|---|---|
| Mean±SD | Median | Range | ||
| Healthy | 20 | 0.029±0.013 | 0.030 | 0.01-0.06 |
| CGP | 20 | 2.76±0.39 | 2.72 | 2.05-2.85 |
| Kruskal-Wallis test: χ2 | 53.103 | |||
| Significance P | 0.001 (HS) | |||
PI: Plaque index; CGP: Chronic generalized periodontitis; SD: Standard deviation; HS: Highly significant
