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. 2015 Jan 9;5(2):100–105. doi: 10.1016/j.jtcme.2014.11.003

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.