Table 5. Differences in Tumor and Postoperative Characteristics Associated With Patient Factors.
| Factora | Relative difference, β coefficient (95% CI) | |||||
|---|---|---|---|---|---|---|
| Clinically apparent tumor size, cmb | Postoperative defect size, cm | Subclinical spread | ||||
| Univariable analysis | Multivariable analysisc | Univariable analysis | Multivariable analysisc | Univariable analysis | Multivariable analysisc | |
| Age ≥89 yd | 0.03 (−0.07 to 0.13) | NA | 0.04 (−0.14 to 0.22) | NA | −0.05 (−0.17 to 0.06) | NA |
| Female sex | −0.02 (−0.12 to 0.09) | NA | −0.01 (−0.19 to 0.18) | NA | −0.05 (−0.17 to 0.07) | NA |
| SCCe | 0.25 (0.15-0.35)f | 0.09 (−0.02 to 0.19) | 0.10 (−0.08 to 0.28) | NA | −0.16 (−0.28 to −0.04)g | −0.10 (−0.23 to 0.02) |
| Living environment | ||||||
| Lives with spouse or partner | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Lives alone | 0.08 (−0.04 to 0.19) | 0.11 (0.00 to 0.22) | 0.21 (0.01 to 0.42)h | 0.23 (0.03 to 0.43)h | −0.04 (−0.17 to 0.09) | −0.05 (−0.18 to 0.08) |
| Nursing home | 0.44 (0.23 to 0.65)f | 0.41 (0.21 to 0.61)f | 0.60 (0.23 to 0.98)g | 0.57 (0.21 to 0.94)g | −0.14 (−0.37 to 0.10) | −0.13 (−0.36 to 0.11) |
| Lives with other family members or friends (not spouse or partner) | 0.05 (−0.14 to 0.23) | 0.09 (−0.09 to 0.27) | −0.06 (−0.40 to 0.27) | −0.01 (−0.34 to 0.32) | −0.22 (−0.43 to −0.01)h | −0.22 (−0.43 to −0.01)h |
| Assisted living or home health nurse | −0.15 (−0.42 to 0.12) | −0.08 (−0.35 to 0.18) | −0.24 (−0.73 to 0.26) | −0.16 (−0.64 to 0.32) | −0.12 (−0.43 to 0.19) | −0.19 (−0.51 to 0.13) |
| Location of tumor | ||||||
| Face except ears, eyes, lips, and nose | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Scalp or neck | 0.44 (0.29 to 0.60)f | 0.40 (0.24 to 0.57)f | 0.43 (0.15 to 0.71)g | 0.42 (0.13 to 0.71)g | −0.25 (−0.43 to −0.06)h | −0.23 (−0.42 to −0.04) h |
| Ears, eyes, lips, or nose | −0.19 (−0.31 to −0.07) | −0.19 (−0.32 to −0.07)g | −0.45 (−0.66 to −0.23)f | −0.45 (−0.67 to −0.23)f | −0.14 (−0.28 to 0.00) | −0.14 (−0.29 to 0.00) |
| Trunk or extremities | 0.49 (0.35 to 0.63)f | 0.43 (0.28 to 0.57)f | 0.41 (0.16 to 0.67)g | 0.38 (0.12 to 0.64)g | −0.20 (−0.37 to −0.03)h | −0.18 (−0.35 to 0.00)h |
| Hands or feet | 0.18 (−0.05 to 0.41) | 0.11 (−0.13 to 0.34) | −0.13 (−0.55 to 0.28) | −0.14 (−0.56 to 0.28) | −0.42 (−0.69 to −0.15)g | −0.31 (−0.59 to −0.03)h |
Abbreviations: BCC, basal cell carcinoma; NA, not applicable; SCC, squamous cell carcinoma.
a
Factors are among patients older than age 85 years referred for Mohs surgery.
b
Measured as largest diameter in centimeters.
c
Multivariable analyses included only variables that were significant (P < .05) from the univariable model. Variables not included are indicated by NA.
d
Compared with patients ages 85 to 88 years.
e
Compared with BCC.
f
P < .001.
g
P < .01.
h
P < .05.