This descriptive study assessed the current trends in the incidence of urological cancers and patient survival in Korea.
In this nationwide retrospective observational study based on the data from the Korea National Cancer Incidence Database (KNCIDB), this study analyzed the age-standardized incidence rates (ASRs) and annual percentage changes (APCs) of kidney, bladder, prostate, testicular, and penile cancers as well as cancer of the renal pelvis and ureter between 1999 and 2012. The relative survival rates (RSRs) were calculated for urological cancer patients diagnosed between 1993 and 2012 from the KNCIDB data.
Prostate cancer was diagnosed in 66,812 individuals followed by bladder (41,549) and kidney (36,836) cancers. The overall ASR (18.26 per 100,000) increased with age because of the higher ASRs of bladder and prostate cancers in the elderly. The ASR for kidney cancer was highest in the 40-59 year old group, whereas testicular cancer occurred most frequently before the age of 40. The incidence of most urological cancers increased (overall APC: 6.39%, p < 0.001), except for penile (APC: -2.01%, p = 0.05) and bladder (APC: -0.40%, p = 0.25) cancers. The overall survival increased steadily (5-year RSR: 66.4% in 1993-1995 vs. 84.2% in 2008-2012, p < 0.001), particularly for prostate (by 34.10%) and kidney (by 16.30%) cancers, but not for renal pelvis and ureter cancers (-7.20%).
The most common urological cancer in Korea was prostate cancer followed by bladder and kidney cancers. The incidence of most urological cancers, except for penile and bladder cancers, increased. Survival also increased, particularly for prostate and kidney cancers.
Cancer research and treatment : official journal of Korean Cancer Association. 2016 Sep 23 [Epub ahead of print]
Jae Young Joung, Jiwon Lim, Chang-Mo Oh, Kyu-Won Jung, Hyunsoon Cho, Sung Han Kim, Ho Kyung Seo, Weon Seo Park, Jinsoo Chung, Kang Hyun Lee, Young-Joo Won
Center for Prostate Cancer, National Cancer Center, Goyang, Korea., Cancer Registration and Statistics Branch, National Cancer Center, Goyang, Korea.