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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: J Am Dent Assoc. 2013 Feb;144(2):179–186. doi: 10.14219/jada.archive.2013.0097

Table 1.

Characteristics of general dentist practitioner-investigators included in analysis of rubber dam use (n=524)

Characteristic (n) Percentage
DPBRN region
Alabama/Mississippi (196) 37%
Florida/Georgia (117) 22%
Other Southeast (39) 7%
Midwest or Northeast (69) 13%
PDA or other West (47) 9%
Scandinavia (56) 11%
Missing (0)
Type of Practice
Solo private practice (263) 50%
Group private practice, but not HPDG or PDA (156) 30%
HPDG or PDA (72) 14%
Public health practice, community health center, or publicly-funded clinic (26) 5%
Other type (7) 1%
Missing (0)
Year of graduation from dental school
Before 1970 (14) 3%
1970–1979 (132) 25%
1980–1989 (176) 34%
1990–1999 (111) 21%
2000 or later (91) 17%
Missing (0)
Gender of dentist
Male (408) 78%
Female (116) 22%
Missing (0)
Race of dentist
White/Caucasian (435) 89%
Non-white (54) 11%
Missing (35)
Hispanic/Latino ethnicity of dentist
Non-Hispanic (413) 97%
Hispanic (15) 3%
Missing (96)

Not all columns add to 100% due to rounding.

HPDG: HealthPartners Dental Group

PDA: Permanente Dental Associates