Table 1.
Baseline demographics
| Demographic characteristic | Manual toothbrush ( n = 55) |
Novel O-R electric toothbrush ( n = 55) |
Overall (n = 110) |
P-value |
|---|---|---|---|---|
| Age (y) | ||||
| Mean (SD) | 48.3 (15.8) | 46.1 (12.8) | 47.2 (14.3) | 0.415 |
| Min.–Max. | 19–83 | 18–69 | 18–83 | |
| Ethnicity | ||||
| Hispanic or Latino | 2 (4%) | 2 (4%) | 4 (4%) | 1.000 |
| Not Hispanic or Latino | 53 (96%) | 53 (96%) | 106 (96%) | |
| Race | ||||
| Asian | 7 (13%) | 9 (16%) | 16 (15%) | 0.301 |
| Black or African American | 14 (25%) | 15 (27%) | 29 (26%) | |
| Multi-Racial | 0 (0%) | 4 (7%) | 4 (4%) | |
| Native Hawaiian or other Pacific Islander | 2 (4%) | 2 (4%) | 4 (4%) | |
| White/Caucasian | 32 (58%) | 25 (45%) | 57 (52%) | |
| Sex | ||||
| Female | 40 (73%) | 37 (67%) | 77 (70%) | 0.533 |
| Male | 15 (27%) | 18 (33%) | 33 (30%) | |