Table 1.
National Dental PBRN study representativeness (PBRN and National) dentists and practice characteristics (data limited to dentists only, omitting dental specialists and hygienists)
| Study sample | PBRNi | BLSii | ADAiii | |
|---|---|---|---|---|
| All practitioners (dentists, specialists, hygienists) | n = 1722 | N = 5000 | N = 373,000 | NA |
| Dentists only | n = 1360 | N = 3553 | N = 196,000 | N = 195,722 |
| Variables: | % | % | % | % |
| Female | 35.1 | 28.3 | 25.9 | 29.8 |
| Black | 5.5 | 4.2 | NA | NA |
| Asian | 11.5 | 9.5 | 16.8 | NA |
| Hispanic | 6.7 | 6.1 | 8.6 | NA |
| Age under 35 a, b, c | 8.0 | 6.6 | NA | 15.91 |
| 35 to 44 a, b | 25.9 | 22.2 | NA | 22.79 |
| 45 to 54 | 21.2 | 21.2 | NA | 21.52 |
| 55 to 64 a, b | 30.4 | 31.7 | NA | 24.82 |
| 65 and older b, c | 13.5 | 17.0 | NA | 14.96 |
| General practice a, b, c | 87.6 | 74.9 | NA | 79.1 |
| Oral and maxillofacial surgery b, c | 1.5 | 1.7 | NA | 3.9 |
| Endodontics a, b | 4.1 | 3.0 | NA | 2.8 |
| Periodontics b, c | 4.3 | 4.0 | NA | 2.8 |
| Prosthodontics | 1.5 | 1.8 | NA | 1.8 |
| Public health dentistry* a, b, c | 6.0 | 3.7 | NA | 0.4 |
| Practice characteristics | ||||
| Percent of patients on private insurance | 60.1 | 59.6 | NA | 64.7 |
| Percent of patients on public insurance | 17.08 | 16.31 | NA | 8.7 |
| Percent of patients without coverage | 23.37 | 24.5 | NA | 26.6 |
| Mean | Mean | Mean | Mean | |
| Patient wait time for treatment appointment (days) | 7.48 | 7.57 | NA | 5.2 |
| Patient wait time in waiting room (minutes) | 8.53 | 8.49 | NA | 7.4 |
| Patients per week**(number) | 42.14 | 52.8 | NA | 76.5 |
iData from PBRN enrollment questionnaire sent in April 2016
iiUsing 2015 data from Bureau of Labor Statistics (https://www.bls.gov/cps/aa2015/cpsaat11.htm)
iiiUsing 2015 data from American Dental Association (https://www.ada.org/en/science-research/health-policyinstitute/data-center/dental-practice)
* Sample is statistically significantly different from BLS population (P < .05)
**PBRN is statistically significantly different from BLS population (P < .05)
aSample is statistically significantly different from network (P < .05)
bSample is statistically significantly different from ADA population (P < .05)
cPBRN is statistically significantly different from ADA population (P < .05)