title: Clinical profile and epidemiological factors of oral cancer patients from North India.
abstract: BACKGROUND
  Tobacco chewing, smoking, and alcohol consumption are major contributing factors in the development of oral carcinoma. India has world's highest number of oral cancers (almost 20%) and approximately 1% of the Indian population has oral premalignant lesions.
  
  
  OBJECTIVE
  The purpose of the study was to evaluate the epidemiological factors and clinical profile of oral cancer cases in our hospital.
  
  
  METHODS
  Department of Surgical Oncology, King George's Medical University, Lucknow, India.
  
  
  METHODS
  A retrospective study was conducted from January 2010 to December 2012 on 479 cases with histopathologically confirmed oral carcinoma. Subjects' details of age, sex, occupation, tobacco consumption, site of carcinoma, and stage at presentation were recorded.
  
  
  RESULTS
  Mean age in this study was 47.84 years with male to female ratio of 3.1:1.0. Buccal mucosa and alveolus were the most affected sites. The majority of cases were from socially and economically weaker section, with 93.72% cases being tobacco users. The majority of cases were advance stage (Stage III and IV) with Stage IV being the predominant stage at presentation followed by Stage III.
  
  
  CONCLUSIONS
  The findings of the study reveal that tobacco consumption is one of the major contributors in the development of cancer of oral cavity with the majority of cases presenting in advance stages posing a big therapeutic challenge.
authors.affiliation: Department of Surgical Oncology, King George's Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Mahendra Pratap
authors.initials: MP
authors.lastname: Singh
authors.affiliation: Department of Surgical Oncology, and Director All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Misra
authors.affiliation: Department of Surgical Oncology, King George's Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Siva Prakash
authors.initials: SP
authors.lastname: Rathanaswamy
authors.affiliation: Department of Surgical Oncology, King George's Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Sameer
authors.initials: S
authors.lastname: Gupta
authors.affiliation: Department of Surgical Oncology, King George's Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Brij Nath
authors.initials: BN
authors.lastname: Tewari
authors.affiliation: Department of Radiotherapy, King George's Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Madan Lal Brahma
authors.initials: ML
authors.lastname: Bhatt
authors.affiliation: Department of Surgical Oncology, King George's Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Vijay
authors.initials: V
authors.lastname: Kumar
keywords: Buccal mucosa; oral cancer; oral cancer epidemiology