Abstract
ObjectiveTo assess the trend of incidence and survival stratified by age, race, gender and SES and the differences in time between groups in stage III–IV upper tract urothelial carcinoma (UTUC) patients. Methods7,505 stage III–IV UTUC patients between 2004 and 2015 were extracted from the Surveillance, Epidemiology and End Results (SEER) database. The overall survival (OS) and the cancer-specific survival (CSS) rates were assessed using the Kaplan-Meier curve and log-rank test as well as multivariate Cox regression analysis. ResultsAmong the 7,505 patients, 3,584 were classified as young, 2,464 were classified as middle-aged, and 1,461 were classified as elderly. The years of diagnosis were divided into three periods including 2004-2007, 2008-2011 and 2012-2015. The incidence rates for UTUC were 0.69, 0.74, and 0.77 per 100,000 in the first, second, and third period, respectively. Disparities in the long-term survival rate between male and female patients and among patients of different races narrowed over time. There was no difference in prognosis between races (p = 0.078 for OS and p = 0.167 for CSS). The difference in survival rate between the poor and rich groups narrowed along with the three time periods. ConclusionsSurvival rate disparities according to sex, race, and socioeconomic status narrowed in time, except in patients aged 74-82 years. Increased age, black race, and poverty are associated with worse survival outcomes. In general, the long-term survival rate improved continuously across the three periods.
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