Table 1.
Comparison of the three groups with respect to clinical parameters.
| Clinical parameters | Group I (control) mean ± SD | Group II (nonsmokers) mean ± SD | Group III (smokers) mean ± SD | Significance | p |
|---|---|---|---|---|---|
| Gingival index | 0.08 ± 0.08 | 2.13 ± 0.52 | 1.19 ± 0.55 | H value, 70.7233 | 0.0000∗ |
| Pocket depth | 2.05 ± 0.25 | 5.97 ± 0.61 | 6.82 ± 0.95 | F value, 435.5330 | 0.0000∗ |
| Clinical attachment loss | 0.09 ± 0.11 | 5.57 ± 1.15 | 6.50 ± 1.52 | F value, 294.9099 | 0.0000∗ |
*Indicates 5% level of significance (p < 0.05).
The H value is based on Kruskal–Wallis analysis of variance (ANOVA); the F value is based on one-way ANOVA.