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Table 4 Association between clusters and clinical and pathological findings

From: Profile of apoptotic proteins in oral squamous cell carcinoma: A cluster analysis of 171 cases

   Cluster   
Variable Category A B Total p-value
Tumor site Oral tongue 72 (82.0) 16 (18.0) 88 0.1225
Floor of mouth 32 (76.0) 10 (24.0) 42
Other 38 (93.0) 3 (7.0) 41
T stage T1/T2 73 (82.0) 16 (18.0) 89 0.7116
T3/T4a 69 (84.0) 13 (16.0) 82
Clinical stage I/II 38 (79.0) 10 (21.0) 48 0.3990
III/IV 104 (85.0) 19 (15.0) 123
Histological grade Well differentiated 108 (81.0) 25 (19.0) 133 0.4002
Moderately differentiated 26 (90.0) 3 (10.0) 29
Poorly differentiated 3 (100.0) 0 (0.0) 3
Vascular invasion No 43 (81.0) 10 (19.0) 53 0.4956
Yes 93 (85.0) 16 (15.0) 109
Perineural infiltration No 74 (80.0) 19 (20.0) 93 0.2045
Yes 61 (87.0) 9 (13.0) 70
Lymph node metastasis No 59 (86.0) 10 (14.0) 69 0.7312
Yes 76 (84.0) 15 (16.0) 91
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