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Table 6 Disease-specific survival (DSS) according to clinical and histological characteristics

From: Melanoma characteristics in Brazil: demographics, treatment, and survival analysis

Variable Category n 5-year SCS (%) p
Anatomical location Upper limbs 139 75.9 <0.001
  Trunk 303 72.0
  Head and neck 172 65.3
  Lower limbs 264 62.1
  Unknown 7 50.0
Sentinel node Negative 258 80.6 <0.001
  Positive 77 54.9
Clark II 97 93.4 <0.001
  III 246 80.2
  IV 313 67.7
  V 106 38.3
Histological subtype Acral lentiginous 53 50.5 <0.001
Nodular 258 61.3
Superficial Spreading 326 82.3
Lentigo maligna 34 87.5
Not classified/other 136 86.4
Mitosis/mm2 0-1 95 77.5 0.005
  >1 236 62.2
Intratumoural lymphocyte infiltration Yes 227 63.8 0.224
No 228 71.3
Peritumoural lymphocyte infiltration Yes 366 71.3 0.136
No 162 57.4
Vascular and lymphatic infiltration Yes 29 50.0 0.066
No 321 68.5
Perineural invasion Yes 14 68.8 0.974
No 303 67.9
Ulceration Present 260 56.8 <0.001
Absent 332 78.0
Regression Yes 57 73.3 0.863
  No 413 69.2
Microscopic satellitosis Yes 44 37.2 <0.001
No 403 74.0