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Table 1 National Dental PBRN study representativeness (PBRN and National) dentists and practice characteristics (data limited to dentists only, omitting dental specialists and hygienists)

From: Preferences for peer-reviewed versus other publication sources: a survey of general dentists in the National Dental PBRN

  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
  1. iData from PBRN enrollment questionnaire sent in April 2016
  2. iiUsing 2015 data from Bureau of Labor Statistics (https://www.bls.gov/cps/aa2015/cpsaat11.htm)
  3. iiiUsing 2015 data from American Dental Association (https://www.ada.org/en/science-research/health-policyinstitute/data-center/dental-practice)
  4. * Sample is statistically significantly different from BLS population (P < .05)
  5. **PBRN is statistically significantly different from BLS population (P < .05)
  6. aSample is statistically significantly different from network (P < .05)
  7. bSample is statistically significantly different from ADA population (P < .05)
  8. cPBRN is statistically significantly different from ADA population (P < .05)