Table 2A:

Practice-related variables (categorical) in relation to the number of lesions suspicious for precancer/cancer and lesions histologically-confirmed as cancer; National Dental PBRN, 2017.

		Number of lesions suspicious for precancer or cancer		Number of histologically-confirmed cancers
Practice related variables	n	Mean (95% CI)	p-value	Mean (95% CI)	p-value
Completed a GPR or AEGD* residency:
Yes	354	9.7 (8.7 10.9)	0.14	0.41 (0.29, 0.52)	0.97
No	716	9.4 (8.7, 10.1)		0.40 (0.33, 0.48)
Missing	3	14		15
Dentist gender:
Female	315	10.5 (9.3, 11.8)	0.04	0.38 (025, 0.50)	0.67
Male	753	9.0 (8.4, 9.8)		0.41 (0.33, 0.48)
Missing	5	16		17
Practice location type			0.44		0.94
Inner city/urban area	117	8.0 (6.1, 10.0)		0.40 (0.19, 0.61)
Urban (not inner city)	292	9.5 (8.4, 10.7)		0.43 (0.31, 0.55)
Suburban	498	9.6 (8.7,10.5)		0.38 (0.29, 0.47)
Rural	157	10.2 (8.6, 11.9)		0.42 (0.26, 0.58)
Missing	9	9		21
Network region where practice located:			0.44		<0.01
Midwest	122	11.5 (9.5, 13.6)		0.33 (0.23, 0.43)	0.68
Southwest	189	8.5 (7.1, 9.9)		0.27 (0.2, 0.35)	0.86
South Central	215	8.9 (7.5, 10.2)		0.40 (0.31, 0.48)	0.30
South Atlantic	131	11.0 (9.0, 13.0)		0.69 (0.55, 0.84)	<0.01
Northeast	248	9.9 (8.6, 11.2)		0.46 (0.38, 0.55)	0.10
Western	168	8.1 (6.8, 9.4)		0.29 (0.15, 0.43)	referent
Missing	0	11		12

Means, 95% CI and p-values obtained from Poisson regression modeling with robust standard errors.

^*GPR: General Practice Residency; AEGD: Advanced Education in General Dentistry