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Table 1 Demographics and univariate analysis

From: Malignant adnexal tumors of the skin: a single institution experience

Patient characteristics Number (%) OS DSS RFS
Age
 ≤ 60 years 26 (52) 0.001 0.89 0.02
 > 60 years 24 (48)
Sex
 Male 28 (56) 0.73 0.25 0.19
 Female 22 (44)
Primary site
 Head and neck 26 (52)
 Trunk 8 (16) 0.96 0.87 0.53
 Upper extremities 8 (16)
 Lower extremities 8 (16)
T stage
 T1 22 (44) 0.18 0.12 0.04
 T2 9 (18)
 T3 1 (2)
 T4 5 (10)
 Tx 13 (26)
N stage
 N0 44 (88) 0.15 0.01 0.03
 N1 4 (8)
 N2 2 (4)
M stage
 M0 30 (60) 0.54 0.19 0.16
 M1 0 (0)
 Mx 20 (40)
Histologic grade
 G1 5 (10) 0.92 0.85 0.85
 G2 8 (16)
 G3 8 (16)
 Gx 29 (58)
Perineural invasion
 Present 2 (4)
 Absent 48 (96)
Lymphovascular invasion
 Present 1 (2)
 Absent 49 (98)
 Type of surgery  
 Wide excision 15 (30) 0.47 0.39 0.17
 Mohs surgery 11 (22)
 Local excision 23 (46)
Chemotherapy
 Yes 4 (8) 0.40 0.02 0.13
 No 46 (92)
Radiation treatment
 Yes 7 (14) 0.42 0.06 0.47
 No 43 (86)
Recurrence
 Yes 6 (12) 0.83
 No 40 (80)
 Unknown 4 (8)
Type of recurrence
 Distant 2 (4) 0.98
 Local 3 (6)
 Regional 1 (2)
  1. Limited observations in perineural invasion, lymphovascular invasion, and recurrence precluded their inclusion in the univariate analysis for OS, DSS, and RFS