Table 1 Dental practice patient population characteristics*
| Â | Intervention | Control | p + |
|---|---|---|---|
| Â | n/N (%) | n/N (%) | Â |
Age | Â | Â | 0.125 |
  19-29 | 66/315 (21%) | 54/261 (21%) |  |
  30-44 | 129/315 (41%) | 78/261 (30%) |  |
  45-59 | 86/315 (27%) | 100/261 (38%) |  |
  60+ | 34/315 (11%) | 29/261 (11%) |  |
Sex | Â | Â | 0.164 |
  Male | 150/312 (48%) | 110/261 (42%)%) |  |
  Female | 162/312 (52%) | 151/261 (58%) |  |
Ethnicity | Â | Â | 0.028 |
  Hispanic/Latino | 4/250 (2%) | 11/209 (5%) |  |
Race | Â | Â | 0.213 |
  White | 216/251 (86%) | 174/209 (83%) |  |
  African America | 32/251 (13%) | 19/209 (9%) |  |
  Asian | 1/251 (0%) | 5/209 (2%) |  |
General Health | Â | Â | 0.042 |
  Excellent | 38/250 (15%) | 38/210 (18%) |  |
  Very Good | 86/250 (34%) | 81/210 (39%) |  |
  Good | 81/250 (32%) | 72/210 (34%) |  |
  Fair/Poor | 45/250 (18%) | 19/210 (9%) |  |
Education | Â | Â | 0.616 |
  Elementary school (1–8) | 3/252 (1%) | 2/211 (1%) |  |
  Some High School (9–11) | 26/252 (10%) | 15/211 (7%) |  |
  High School Graduate (12 or GED) | 76/252 (30%) | 61/211 (29%) |  |
  Some College (1–3 years) | 84/252 (33%) | 69/211 (33%) |  |
  College Graduate (4 years or more) | 63/252 (25%) | 64/211 (30%) |  |
Lives with smoker | 90/251 (36%) | 83/210 (40%) | 0.418 |