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Table 1 Clinicopathological features of patients

From: Oral lichen planus and other confounding factors in narrow band imaging (NBI) during routine inspection of oral cavity for early detection of oral squamous cell carcinoma: a retrospective pilot study

Characteristics Case no. (%)
Gender
 Male 58 (59.1)
 Female 40 (40.9)
 Total 98 (100.0)
Age in years (mean ± standard deviation) 61 ± 13.7
Smoking
 Yes 38 (38.7)
 No 43 (43.8)
 Ex-smoker 17 (17.5)
Presence of removable dentures
 Yes 53 (54.0)
 No 45 (46.0)
Anamnesis of radiotherapy
 Yes 5 (5.1)
 No 93 (94.9)
Anamnesis of OSCC
 Yes 26 (24.5)
 No 80 (75.5)
Type of epithelium
 Tongue epithelium 30 (28.3)
 Specialized epithelium 0(0)
 Masticatory epithelium 25 (23.6)
 Lining epithelium 51 (48.1)
Topographic location of lesions
 Tongue 30 (28.4)
 Buccal Mucosa 47 (44.3)
 Hard Palate 11 (10.4)
 Soft Palate 3 (2.8)
 Gum 10 (9.4)
 Floor of mouth 5 (4.7)
 Total 106 (100.0)
IPCL pattern by NBI
 Pattern I 18 (16.9)
 Pattern II 40 (37.7)
 Pattern III 24 (22.7)
 Pattern IV 24 (22.7)
Diagnoses
 OSCC/Cis 19 (17.9)
 HGD 4 (3.8)
 PVL 3 (2.8)
 LGD 20 (18.9)
 OLP 30 (28.3)
 FK 30 (28.3)
  1. OSCC/Cis oral squamous cell carcinoma/ carcinoma in situ, HGD high grade dysplasia, PVL proliferative verrucous leukoplakia, LGD low grade dysplasia, OLP oral lichen planus, FK frictional keratosis