Table 3. Multivariable Analysis of Factors Associated With Odds of Receiving MMS^a.

Variable	OR (95% CI)b	P Value
Age, y
≤54	1 [Reference]	NA
55-64	1.07 (0.97-1.17)	.20
65-74	1.08 (0.98-1.20)	.13
≥75	1.16 (1.04-1.30)	.006
Sex
Male	0.91 (0.86-0.99)	.02
Female	1 [Reference]	NA
Race
White	1 [Reference]	NA
Black	1.87 (1.07-3.28)	.03
Hispanic	0.76 (0.50-1.17)	.21
Asian or Pacific Islander	0.76 (0.28-2.07)	.59
Other or unknown	1.19 (0.93-1.53)	.16
Charlson-Deyo comorbidity scorec
0	1 [Reference]	NA
1	0.72 (0.63-0.83)	<.001
2	0.67 (0.46-0.98)	.04
≥3	0.93 (0.51-1.69)	.81
Facility type
Nonacademic	1 [Reference]	NA
Academic	2.03 (1.88-2.18)	<.001
Anatomical site
Trunk	1 [Reference]	NA
Upper limb or shoulder	1.09 (0.98-1.21)	.11
Lower limb or hip	0.97 (0.86-1.09)	.59
Face	3.17 (2.86-3.52)	<.001
Scalp or neck	1.60 (1.38-1.85)	<.001
Overlapping or NOS	1.62 (1.03-2.54)	.04
Histologic subtype
Superficial spreading	1 [Reference]	NA
Lentigo maligna	1.95 (1.73-2.21)	<.001
Nodular	0.75 (0.57-0.97)	.03
Malignant acral lentiginous	0.99 (0.63-1.55)	.96
Malignant desmoplastic	0.97 (0.61-1.56)	.91
Spindle cell	0.93 (0.56-1.55)	.78
Other or NOS	1.08 (1.00-1.17)	.07
Ulceration
Not present	1 [Reference]	NA
Present	0.66 (0.54-0.81)	<.001
Breslow thickness, mm
<0.80	1 [Reference]	NA
0.80-1.00	0.58 (0.51-0.66)	<.001
1.01-2.00	0.37 (0.33-0.42)	<.001

Abbreviations: MMS, Mohs micrographic surgery; NA, not applicable; NOS, not otherwise specified; OR, odds ratio.

^aPatient insurance status was excluded from the multivariable model after Akaike information criterion minimization.

^bIndicates in reference to wide margin excision.

^cLower score indicates a lower comorbidity burden; higher score, a higher comorbidity burden.