Table 2: Demographic data and clinical parameters.

Diagnosis Total Age (mean years ± SD) Male (%) Smokers (%) Probing depth (mm) (mean ± SD) Recession (mean ± SD) Clinical attachment level (mm) (mean ± SD) Bleeding on probing (%)
Periodontal
health
50 46 ± 8 52

(a)
24 1.54 ± 0.2

(a)
0.04 ± 0.06 (a) 1.38 ± 0.24 (a) 6% ± 5% (a, b)
Gingivitis 52 49 ± 9 42

(b)
35 1.89 ± 0.3

(b)
0.06 ± 0.16 (b) 1.61 ± 0.4

(b)
34% ± 15% (a)
Chronic
periodontitis
52 50 ± 10 79

(a, b)
38 3.05 ± 0.6

(a, b)
0.31 ± 0.42 (a, b) 2.81 ± 0.6

(a, b)
32% ± 21% (b)

Statistically significant differences between groups are indicated by the same letter (Kruskal Wallis test and z-test with Bonferroni corrections, P < 0.05)

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