The Burden of Penile Cancer in Bali Compared to Other Provinces in Indonesia

Abstract

Objective: In Indonesia, 45% of the total penile cancer cases are concentrated in Bali province, where penile cancer is ranked as the most common cancer during 2013. However, the incidences of penile cancer in Bali and other provinces in Indonesia are still unknown. The purpose of this study is to determine the age-standardized incidence rate (ASR), age-specific incidence rate (AR), and crude rate incidence (CRI) of penile cancer in Bali and other provinces in Indonesia.
 Methods: The data were obtained from 11 provinces in Indonesia over a period of 10 years (2004-2013). The samples were 1032 new cases of penile cancer collected manually from the registry. ASR, AR, and CRI were calculated based on the number of new penile cancer cases per 100,000 men in a given province. Indonesian population standard was used to calculate the age-standardized incidence rate.
 Result: There were variations on ASR, AR, and CRI for penile cancer in Indonesia. We found that the average CRI in Indonesia is 0.1 per 100,000 men. The incidence is found to be higher in Bali compared to other provinces. The average ASR in Bali is 2.1 per 100,000 men, CRI is 2.5 per 100,000 men, and the peak of AR being 12.9 per 100,000 men in the age group of 55-64 years old. The incidence of penile cancer is found to increase with age. In Bali, the peak incidence is in the 6th and 7th decades of life. The ASR and CRI of penile cancer in other provinces were less than 1 per 100,000 males.
 Conclusion: The highest incidence of penile cancer is found in the Bali province compared to other provinces in Indonesia. This problem requires more serious attention and further research to identify the risk factors.