Table 3.
Characteristics of study population in relation to tooth brushing (n=2435).
| Variables | Brushing | P value | |
|---|---|---|---|
| Yes (%) | No (%) | ||
| Total | 2156 (88.5) | 279 (11.5) | N/A |
| Age (years) | 17.25 (1.0) | 17.35 (1.0) | .135 |
| Nationality | |||
| Non-Saudi | 171 (87.2) | 25 (12.8) | .552 |
| Saudi | 1985 (88.7) | 254 (11.3) | |
| Gender | |||
| Male | 1094 (82.3) | 235 (17.7) | <.001 |
| Female | 1062 (96.0) | 44 (4.0) | |
| Flossing | |||
| Yes | 244 (95.7) | 11 (4.3) | <.001 |
| No | 1912 (87.7) | 268 (12.3) | |
| Tongue brushing | |||
| Yes | 868 (99.7) | 3 (0.3) | <.001 |
| No | 1288 (82.4) | 276 (17.6) | |
| Plaque index | 1.23 (0.8) | 1.59 (0.8) | <.001 |
| Gingival index | 1.00 (0.8) | 1.21 (0.8) | <.001 |
| Missing teeth | 0.42 (1.0) | 0.25 (0.7) | <.001 |
| Mean PD | 0.59 (0.2) | 0.61 (0.2) | .171 |
| PD (%) ≥4 mm | 1.81 (4.8) | 2.23 (5.1) | .166 |
Data are number (%) or mean (standard deviation). Note: Number do not add up in some cells due to missing data.