Skip to main content

Table 2 Association between patient characteristics and surgical margins (n = 34)

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

Characteristic Positive margins Negative margins P Value
Age (Mean) 58.0 56.8 .78
Sex
 Male 3 (12 %) 22 (88 %) > .99
 Female 1 (11 %) 8 (89 %)  
Location
 Tonsil 1 (6 %) 16 (94 %) .34
 Base of Tongue 3 (19 %) 13 (81 %)  
Smoking
 Smoker 3 (14 %) 18 (86 %) > .99
 Non-Smoker 1 (8 %) 12 (92 %)  
p16
 Positive 3 (11 %) 25 (89 %) > .99
 Negative 0 (0 %) 3 (100 %)  
Preoperative Tumor Size (Mean) 2.70 cm 2.18 cm .59
Preoperative Tumor Size
Median = 2.20 cm    > .99
 Less than median size 0 (0 %) 12 (100 %)  
 Greater than or equal to median size 1 (8 %) 12 (92 %)  
Postoperative Tumor Size (Mean) 3.40 cm 2.08 cm .03
Postoperative Tumor Size
Median = 2.20 cm    > .99
 Less than median size 1 (7 %) 14 (93 %)  
 Greater than or equal to median size 2 (13 %) 14 (88 %)  
Preoperative Node Size (Mean) 2.85 cm 2.89 cm .96
Preoperative Node Size
Median = 3.00 cm    > .99
 Less than median size 1 (10 %) 9 (90 %)  
 Greater than or equal to median size 1 (8 %) 12 (92 %)  
Postoperative Node Size (Mean) 3.45 cm 3.54 cm .93
Postoperative Node Size
Median = 3.50 cm    > .99
 Less than median size 1 (13 %) 7 (88 %)  
 Greater than or equal to median size 1 (9 %) 10 (91 %)