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. 2021 Oct 11;2021:4740924. doi: 10.1155/2021/4740924

Table 1.

Baseline demographic and tumor characteristics.

Variable Overall (n = 190) MDM2 positive (n = 88) MDM2 not performed (n = 102) p value
n (%) n (%) n (%)
Age (mean, yrs) 61.7 ± 13.1 62.2 ± 13.7 61.4 ± 12.6 0.67
Sex (male) 100 52.6 46 52.3 54 52.9 0.93
BMI (mean) 28.1 ± 5.2 28.4 ± 5.3 27.8 ± 5.1 0.44
Margin status 0.22
 Positive 127 66.8 63 71.6 64 62.7
 Negative 49 25.9 16 18.2 33 37.3
 Could not be determined 14 7.4 9 10.2 5 4.9
Location 0.98
 Upper extremity 25 13.2 12 13.6 13 12.7
 Lower extremity 156 82.1 73 83.0 83 81.4
 Superficial torso 9 4.7 3 3.4 6 5.9
Size (cm) 17.7 ± 8.5 19.3 ± 7.8 16.3 ± 9.0 0.02
CT scans (mean) 0.9 ± 2.1 0.7 ± 2.6 1 ± 1.7 0.39
CXRs (mean) 1.3 ± 2.5 1.4 ± 2.3 1.3 ± 2.8 0.61
Local recurrences (total) 36 18.9 16 18.2 20 19.6 0.75
Cost (mean, $),^ 323.58 ± 585.95 371.40 ± 689.57 281.08 ± 475.01 0.25
Follow-up time (mean, months) 58.6 ± 33.1 47.2 ± 27.7 68.4 ± 34.2 <0.001

Continuous variables presented with mean and SD. ^Costs were calculated based on publicly available averages for CT scans of the thorax without contrast ($285) and chest radiographs with 2 views ($60.93) in North Carolina. Bold values represent statistical significance at p < 0.05.