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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Cancer. 2014 Jan 21;120(7):983–991. doi: 10.1002/cncr.28532

Table 1.

Baseline characteristics of patients (N = 155)

Clinicopathological Variables All (N = 155) Normal Weight (N= 63) Overweight (N = 62) Obese (N = 30) P
Age, years
Median (range) 57 (18 to 86) 53 (18 to 82) 59 (20 to 86) 59 (23 to 80) .07
Gender
Female 65 (42%) 31 (49%) 22 (35%) 12 (40%)
Male 90 (58%) 32 (51%) 40 (65%) 18 (60%) .29
Race
Asian 21 (14%) 11 (17%) 8 (13%) 2 (7%)
Black 4 (3%) 3 (5%) 1 (2%) 0 (0%)
Hispanic or Latino 1 (1%) 1 (2%) 0 (0%) 0 (0%)
White 129 (83%) 48 (76%) 53 (85%) 28 (93%) .46
Alcohol
Never 47 (30%) 16 (25%) 19 (31%) 12 (40%)
Former 10 (6%) 5 (8%) 2 (3%) 3 (10%)
Current 98 (63%) 42 (67%) 41 (66%) 15 (50%) .34
Smoking
Never 65 (42%) 23 (37%) 28 (45%) 14 (47%)
Former 48 (31%) 20 (32%) 17 (27%) 11 (37%)
Current 42 (27%) 20 (32%) 17 (27%) 5 (17%) .54
Diabetes mellitus
No 144 (93%) 60 (95%) 59 (95%) 25 (83%)
Yes 11 (7%) 3 (5%) 3 (5%) 5 (17%) .10
Pre-diagnosis Weight Loss
No 94 (61%) 36 (57%) 38 (61%) 20 (67%)
Yes 44 (28%) 20 (32%) 18 (29%) 6 (20%) .57
Unknown 17 (11%) 7 (11%) 6 (10%) 4 (13%) .85
T stage
T1 109 (70%) 45 (71%) 43 (69%) 21 (70%)
T2 46 (30%) 18 (29%) 19 (31%) 9 (30%) .97
Tumor Thickness, cm
Median (range) .65 (.05 to 3.1) .6 (.1 to 2.5) .7 (.05 to 1.9) .73 (.1 to 3.1) .40
Tumor Grade
1 39 (25%) 16 (25%) 18 (29%) 5 (17%)
2 103 (66%) 43 (68%) 39 (63%) 21 (70%)
3 10 (6%) 3 (5%) 4 (6%) 3 (10%) .67
Missing data 3 (2%) 1 (2%) 1 (2%) 1 (3%) .61
Perineural Invasion
No 73 (47%) 26 (41%) 31 (50%) 16 (53%)
Yes 62 (40%) 29 (46%) 22 (35%) 11 (37%) .43
Missing data 20 (13%) 8 (13%) 9 (15%) 3 (10%) .91
Vascular Invasion
No 111 (72%) 41 (65%) 48 (77%) 22 (73%)
Yes 24 (15%) 14 (22%) 5 (8%) 5 (17%) .10
Missing data 20 (13%) 8 (13%) 9 (15%) 3 (10%) .91
Lymph Node Involvement
No 100 (65%) 40 (64%) 41 (66%) 19 (63%)
Yes 55 (36%) 23 (37%) 21 (34%) 11 (37%) .95
Final Surgical Margins
Negative 145 (94%) 59 (94%) 57 (92%) 29 (97%)
Positive 10 (6%) 4 (6%) 5 (8%) 1 (3%) .84
Postoperative Chemotherapy
No 146 (94%) 58 (92%) 59 (95%) 29 (97%)
Yes 9 (6%) 5 (8%) 3 (5%) 1 (3%) .74
Postoperative Radiation
No 96 (62%) 38 (60%) 39 (63%) 19 (63%)
Yes 59 (38%) 25 (70%) 23 (37%) 11 (37%) .95