Table 5.
Characteristics of the study samples relative to the presence of 4 or more bacteria.
| Variables | 4 or more bacteria | P value | |
|---|---|---|---|
| Yes | No | ||
| Total (n) | 5 (1.8) | 272 (98.2) | N/A |
| Age (years) | 17.00 (0.7) | 17.26 (1.0) | .556 |
| Gender | |||
| Male | 0 | 101 (100.0) | .087 |
| Female | 5 (2.8) | 171 (97.2) | |
| Nationality | |||
| Non-Saudi | 0 | 63 (100.0) | .221 |
| Saudi | 5 (2.3) | 209 (97.7) | |
| Smoker | |||
| Yes | 0 (0.0) | 17 (100.0) | .564 |
| No | 5 (1.9) | 255 (98.1) | |
| Plaque Index | 1.78 (0.3) | 1.48 (0.8) | .417 |
| Gingival Index | 2.00 (0.3) | 1.22 (0.8) | .003a |
| PD (mm) | 0.42 (0.2) | 0.68 (0.2) | .008b |
| PD ≥4 mm | 3.46 (1.4) | 7.53 (9.4) | <.001a |
| CAL (mm) | 0.12 (0.3) | 0.18 (0.3) | .675 |
| CAL ≥1m | 1.90 (4.2) | 10.35 (22.9) | .411 |
a
Welch's t test <.05 level.
b
Independent t test Note: Numbers do not add up in some cells due to missing data.