Incidence and mortality rates of kidney cancers in Iran compared to its proportion throughout the world

Abstract

Introduction: Kidney cancer was considered as the ninth common cancer worldwide. Its incidence and mortality has been increasing for decades. However, in recent years in many countries, there is a downward trend. Objectives: This study sought to evaluate the incidence and mortality rates of renal cancers in Iran compared to its proportion throughout the world. Materials and Methods: All mortality and incidence rates of all countries were extracted from the Global Cancer Project (GLOBOCAN) (data of 2012). The methods of estimation were quality of the estimation and country-specific that was dependent on the quality and on the amount of the available data of each country. Results: The rates have been shown in eight categories; world, very high human development, high human development, medium human development, low human development, less developed, more developed regions in addition to Iran. The rates of Iran were close to medium human developed region rates. In Iran, 1641 kidney cancers cases have been registered which 981 men and 660 women were reported with an overall incidence rate of 1.9 per 100 000 which is less than world incidence rate for kidney cancers. In Iran, the highest incidence was also among patients with age of 75 years and more. Additionally, the lowest incidence rates were among age groups of less than 15 years and age group of 45- 49 years. Conclusion: Considering the lower incidence and mortality rates of kidney cancer in Iran compared to other regions of the world, conducting more studies to find related-risk factors to decline the incidence rates of disease would be necessary.