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Table 4 Sensitivity analysis comparing extracapsular extension (ECE) with preoperative node size (n = 21)

From: Pretreatment predictors of adjuvant chemoradiation in patients receiving transoral robotic surgery for squamous cell carcinoma of the oropharynx: a case control study

Preoperative Node Size ECE No ECE P Value
Less than 2.0 cm 1 (20 %) 4 (80 %) .01
Greater than or equal to 2.0 cm 14 (88 %) 2 (13 %)  
Less than 2.5 cm 2 (29 %) 5 (71 %) .006
Greater than or equal to 2.5 cm 13 (93 %) 1 (7 %)  
Less than 3.0 cm 4 (44 %) 5 (56 %) .046
Greater than or equal to 3.0 cm 11 (92 %) 1 (8 %)  
Less than 3.5 cm 10 (63 %) 6 (38 %) .26
Greater than or equal to 3.5 cm 5 (100 %) 0 (0 %)  
Less than 4.0 cm 13 (68 %) 6 (32 %) > .99
Greater than or equal to 4.0 cm 2 (100 %) 0 (0 %)  
  1. ECE indicates extracapsular extension