Table 1.
Relations between smoking parameters and cases.
| Cases | Duration of smoking (years) |
Eta-value | Degree | |||||
|---|---|---|---|---|---|---|---|---|
| 1–5 | 6–10 | 11–15 | >15 | T. | % | |||
| Periodontitis | 2 | 10 | 2 | 21 | 35 | 56.5 | 0.53 | High |
| Gingivitis | 0 | 1 | 2 | 3 | 6 | 9.7 | ||
| Caries | 0 | 0 | 3 | 3 | 6 | 9.7 | ||
| Partial edentulous | 0 | 2 | 1 | 4 | 7 | 11.3 | ||
| Controls | 0 | 2 | 1 | 5 | 8 | 12.9 | ||
| Total | 2 | 15 | 9 | 36 | 62 | 100 | ||
| % | 3.2 | 24.2 | 14.5 | 58.1 | 100 | |||
| Cases | Duration of cessation (years) in former smokers |
Eta-value | Degree | ||||
|---|---|---|---|---|---|---|---|
| <5 | 5–10 | ⩾10 | T. | % | |||
| Periodontitis | 3 | 5 | 5 | 13 | 50 | 0.37 | Low |
| Partial edentulous | 0 | 0 | 4 | 4 | 15.4 | ||
| Gingivitis | 0 | 0 | 1 | 1 | 3.8 | ||
| Caries | 2 | 1 | 0 | 3 | 11.5 | ||
| Controls | 3 | 1 | 1 | 5 | 19.3 | ||
| Total | 8 | 7 | 11 | 26 | 100 | ||
| % | 30.8 | 26.9 | 42.3 | ||||
T. = Total.