Table I:

Patient demographics and differences in Mohs micrographic surgery (MMS) defect sizes. Model I contains the main effect of race/ethnicity, while Model II additionally adjusts for carcinoma type, insurance type, gender, and age.

		Model I				Model II
Predictors	N(%) or M(SD)	% Change in MMS Defect	B	CI	p	% Change in MMS Defect Size Size	B	CI	p
(Intercept)			0.31	0.11, 0.51	0.002		0.01	−0.57, 0.60	0.968
Race/Ethnicity
Non-Hispanic White	2649 (76.0%)		ref	-	-		ref	-	-
Hispanic/Latino	307 (8.8%)	+17%	0.16	0.04, 0.29	0.011	+16%	0.15	0.02, 0.29	0.024
Asian	59 (1.7%)	+12%	0.11	−0.16, 0.38	0.441	+12%	0.11	−0.15, 0.37	0.39
Other/Unknown/Mixed	471 (13.5%)	+6%	0.06	−0.17, 0.04	0.226	−5%	−0.05	−0.15, 0.05	0.338
Carcinoma Type						-	ref	-	-
BCC	1985 (56.9%)					-	ref	-	-
BSCC	17 (0.5%)					+101%	0.70	0.21, 1.18	0.005
SCC	1484 (42.6%)					+35%	0.30	0.23, 0.37	<0.001
Insurance
Medicare	1667 (47.8%)					-	ref	-	-
HMO	225 (6.5%)					+22%	0.20	0.06, 0.34	0.006
Medi-Cal LA Care	93 (2.7%)					+52%	0.42	0.20, 0.64	<0.001
Medi-Cal Restr. Ben.	79 (2.3%)					+11%	0.10	−0.16, 0.35	0.45
Other Ins.	339 (9.7%)					+5%	0.05	−0.07, 0.17	0.4
PPO	1031 (29.6%)					−10%	−0.11	−0.20, −0.02	0.016
Self-Pay	53 (1.5%)					−1%	−0.01	−0.28, 0.28	0.99
Gender
Female	1333 (38.2%)					-	ref	-	-
Male	2153 (61.8%)					+39%	0.33	0.26, 0.40	<0.001
Age*	67.8 (14.2)					+4%	0.04	0.02, 0.05	<0.001

^*Regression coefficient reflects a 5-year increase in age.