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Table 1 Clinico-pathologic features of squamous cell carcinoma head and neck (n = 115)

From: Immunohistochemical expression of epidermal growth factor receptor (EGFR) in South Asian head and neck squamous cell carcinoma: association with various risk factors and clinico-pathologic and prognostic parameters

Characteristic Frequency (%)
Age(years)a 51.95 ± 12.62
Age groups
 ≤ 30 years 4 (3.5)
 31–50 years 57 (49.6)
 > 50 years 54 (47)
Gender
 Male 85 (73.9)
 Female 30 (26.1)
History of pan (n = 44)
 Yes 27 (61.4)
 No 17 (38.6)
History of smoking(n = 44)
 Yes 4 (9.1)
 No 40 (90.9)
History of alcohol (n = 44)
 Yes 1 (2.3)
 No 43 (97.7)
Location of tumor
 Oral cavity 79 (68.7)
 Lip 3 (2.6)
 Tongue 29 (25.2)
 Soft palate 4 (3.5)
Tumor size (cm)a 3.21 ± 1.74
Tumor stage
 T1 31 (27)
 T2 54 (47)
 T3/T4 30 (26.1)
Depth of invasion (cm)a 1.11 ± 0.74
Depth of invasion
 < 2 cm 98 (85.2)
 ≥ 2 cm 17 (14.8)
Nodal stage
 No 63 (54.8)
 N1 17 (14.8)
 N2a 0 (0)
 N2b 31 (27)
 N2c 3 (2.6)
 N3 1 (0.9)
Extranodal extention
 Not present 85 (73.9)
 Present 30 (26.1)
Histological subtypes
 Non-keratinizing 17 (14.8)
 Keratinizing 65 (56.5)
 Non-keratinizing with maturation 33 (28.7)
Histologic grade
 Grade-I 31 (27)
 Grade-II 71 (61.7)
 Grade-III 13 (11.3)
Lymphovascular invasion
 Not present 114 (99.1)
 Present 1 (0.9)
Perineural invasion
 Not present 99 (86.1)
 Present 16 (13.9)
Radiation (n = 45)
 Yes 25 (55.6)
 No 20 (44.4)
Chemotherapy (n = 45)
 Yes 24 (53.3)
 No 21 (46.7)
Recurrence (n = 45)
 Yes 23 (51.1)
 No 22 (48.9)
  1. aMean ± SD