Background: Oral cancer ranks in the top three of all cancers in India, which accounts for over 30% of all cancers reported in the country, and oral cancer control is quickly becoming a global health priority. We have conducted an age period analysis of oral cancer incidence trends using the Population-Based Cancer Registry (PBCR) data in Delhi over a 24-year period (1990–2014) to address the trends of one of the leading cancer sites in Delhi. Materials and Methods: The data of oral cancer proportion and incidence for the year 1990–2014 were taken from Delhi PBCR which records cancer cases from more than 180 government and 250 private facilities. The data were segregated by sex, age, and anatomical site and were analyzed to calculate age-specific incidence rates and expressed in cases per 100,000 persons/year. Results: The highest incidence for both genders was seen in the age group 50–59 years and the lowest incidence for both genders was in youngest age group (<20 years) for all the years from 1990 to 2014. The relative proportion of oral cancer among all types of cancer in Delhi has shown alarming rise from the year 2003 onward. Conclusion: Increasing relative proportion of oral cancer can be implicated in increased consumption of gutkha chewers in the last decade of the 20th Century. As access to health-care services and cancer-related awareness is highly variable in India, more in-depth analysis of the incidence of oral cancer in rural regions will be required.

There is a constant rise in cancer cases, but the trends and pattern vary according to the geographical region. The aim of this brief research was to present an update of all cancer incidences through age-adjusted rates and their changes in different regions of the country. The data for this study were obtained from published reports of 28 population-based cancer registries (2005-2014) in India. Among males, currently, East/Northeast region ranked first, on the basis of incidence of cancer cases. Out of 28 registries, 11 registries encountered lung cancer as the leading site. Currently, East/Northeast regions were ranked first on the basis of incidence of cancer cases among females. Our study showed that 20 registries among the 28 had breast cancer as the leading one. Thus, the present overview revealed that all cancers in both males and females are consistent and had a high incidence in East/Northeast region of the country.

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Tobacco use is the most common cause of non-communicable disease related morbidity and mortality worldwide despite being preventable. Almost fifty percent or more than seven million tobacco users get killed each year and about 13 percent of them are non-smokers being exposed to second hand smoke (1). According to the recent National family health survey (NFHS-4) study for the year 2015-16, there were 38.9% men who use any kind of tobacco in urban while 48% in rural areas of India. On the other hand, 4.4% of women in urban and 8.1% in rural use any kind of tobacco. Prevalence of tobacco use in the ages of 13-15 among boys was 19% and girls 8.3 % according to global youth tobacco survey of 2009. The tobacco dependence was considered as disease by the international classification of diseases (ICD 10). Proportion of tobacco related cancers in comparison to all other cancers were reported to be as high as 25% in men and 18% in women (2).

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