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Table 1 Patient, disease and treatment characteristics

From: The potential risk of contralateral non-sentinel groin node metastasis in women with early primary vulvar cancer following unilateral sentinel node metastasis: a single center evaluation in University Hospital of Düsseldorf

SLNB Group 1
(n = 12)
Group 2A&B
(n = 14)
Group 2C
(n = 4)
p value
Age (years)     0.793
Median (range) 50 (28–79) 52.5 (27–82) 55 (51–67)  
Primary vulvar tumor location     0.553
 Midline 9 (75%) 11 (78.6%) 4 (100%)  
 Lateralized 3 (25%) 3 (21.4%) 0  
Diameter (mm)     0.7645
 Median (range) 15.5 (6.0–54.0) 19.5 (9.0–60.0) 22.5 (16.0–35.0)  
Diameter categories     0.246
 < 20 mm 7 (58.3%) 7 (50%) 1 (25%)  
 ≥ 20 mm but < 40 mm 3 (25%) 5 (35.7%) 3 (75%)  
 ≥ 40 mm 2 (16.7%) 2 (14.3%) 0  
Depth (mm)     0.0038*
 Median (range) 3.0 (1.8–6.0) 6.0 (2.0–15.0) 8.5 (5.0–23.0)  
Grade     0.410
 1  
 2 10 (83.3%) 11 (78.6%) 2 (50%)  
 3 2 (16.7%) 3 (21.4%) 2 (50%)  
Radiotherapy 4 (33.3%) 6 (42.9%) 3 (75%)  
Chemotherapy 0 2 (14.3) 2 (50%)  
Local recurrence 1 (8.3%) 1 (7.1%) 1 (25%)  
Groin recurrence 1 (8.3%) 0 0  
  (fat tissue)    
Distant metastases 1 (8.3%) 0 1 (25%)  
  1. A p value of less than 0.05 is considered to be statistical significant
  2. *At depth of infiltrating tumor