Table 1.

Summary of patient characteristics (n=74)

Characteristic	Patients, n (%)
Age, years
<55	28 (37.8%)
≥55	46 (62.2%)
Gender
Male	50 (67.6%)
Female	24 (32.4%)
Differentiated
Well	43 (58.1%)
Moderately	27 (36.5%)
Poorly	4 (5.4%)
Clinical stage
I	22 (29.7%)
II	20 (27.1%)
III	16 (21.6%)
IV	16 (21.6%)
Recurrence
No	51 (68.9%)
Yes	23 (31.1%)
Pattern of invasion
I	18 (24.3%)
II	5 (6.8%)
III	34 (45.9%)
IV	17 (23.0%)
Lymph node involvement
No	21 (28.4%)
Yes	53 (71.6%)