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Table 1 Patient characteristics, sites and staging of primary malignancies

From: Value of oesophagoscopy and bronchoscopy in diagnosis of synchronous malignancies in patients with head and neck squamous cell carcinomas

Parameter Number of patients
Mean Age at presentation (years ± SD) 63 ± 13.9
Gender (n, %)
 -Male 522 (74.4)
 -Female 180 (25.6)
Active or ex-smokers (n, %)
 -Yes 393 (56)
 -No 309 (44)
Active or ex-drinkers (n, %)
 -Yes 209 (29.8)
 -No 493 (70.2)
Sites of primary malignancies (n, %)
 -Oral cavity 356 (50.7)
 -Larynx 126 (17.9)
 -Hypopharynx 110 (15.7)
 -Oropharynx 74 (10.5)
 -Paranasal sinuses and nasal cavity 33 (4.7)
Stages of primary malignancies (n, %)
 -Stage 1 162 (23.3)
 -Stage 2 92 (13.1)
 -Stage 3 89 (12.7)
 -Stage 4 357 (50.9)
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