TABLE 1.
Summary of demography and clinical parameters within periodontitis and gingivitis subject groups
| Parametera | Type of value | Periodontal condition |
Statistical test | P valuec | |
|---|---|---|---|---|---|
| Periodontitis (n = 10) | Gingivitis (n = 8)b | ||||
| Profile of subjects | |||||
| Age (yr) | Mean ± SD | 35.8 ± 9.6 | 49.5 ± 5.3 | t test | 0.002 |
| Gender | No. of males | 7 | 3 | Fisher’s exact t test | 0.45 |
| No. of females | 3 | 5 | |||
| Standing teeth | Median no. | 27 | 26 | Mann-Whitney U test | 0.633 |
| Interquartile range | 3 | 2 | |||
| Full-mouth BOP score (%) | Mean ± SD | 76.4 ± 16.9 | 30.4 ± 18.4 | t test | <0.0001 |
| Range | 63.6–100 | 12.4–60.7 | |||
| Full-mouth PPD ≥5 mm (%) | Mean ± SD | 20.8 ± 17.10 | 0 | t test | 0.004 |
| Range | 2.7–52.3 | 0 | |||
| Profile of sampled sites | |||||
| No. sampled | Mean ± SD | 32.0 ± 24.6 | 157.8 ± 7.5 | t test | <0.0001 |
| Range | 4–69 | 144–168 | |||
| BOP (%) | Median | 99.3 | 21.5 | Mann-Whitney U test | <0.0001 |
| Interquartile range | 6.0 | 33.0 | |||
| Mean PPD (mm) | Mean ± SD | 5.9 ± 0.4 | ND | ||
| Range | 5.3–6.5 | ND | |||
a
PPD, pocket-probing depth; BOP, bleeding on probing.
b
The PPD values for all gingivitis group subjects were ≤3 mm according to the criteria for the group and were not recorded. ND, not determined.
c
P values of <0.05 are indicated with boldface.