The survival outcomes of very young and elderly patients with high-risk prostate cancer after radical treatments: A population-matched study.

This study evaluated the survival outcomes of young (<50 years) and elderly patients (>80 years) with high-risk prostate cancer (PCa) postradical local treatments.

We identified <50 and >80-year-old patients with high-risk PCa between 2004 and 2015 in the Surveillance, Epidemiology, and End Results database. The patients aged 65 and 66 years were also identified as the control group. The propensity-score matching method was adopted to compare the young and elderly patients with the control group. Kaplan-Meier analysis and Cox regression were conducted to evaluate the PCa-specific survival (PCSS) and overall survival.

A total of 17726 patients were identified, and 3355 were under 50 years old, whereas 4798 of them were >80 years old. The young patient group (<50 years) had similar PCSS with the control group (65-66 years) in both the overall cohort (hazard ratio [HR]: 0.88, 95% confidence interval [CI] [0.73-1.06], P = 0.132) and matched cohort (HR: 0.96, 95% CI [0.74-1.24], P = 0.527). Young patients with both high-risk and very high-risk PCa after radical prostatectomy (RP) treatment had apparent longer mean cancer-specific survival time than those after external-beam radiotherapy (EBRT) and/or brachytherapy (BT) treatment (high-risk group: 153.38 ± 0.82 months vs. 149.72 ± 3.03 months; very high-risk group: 148.3 ± 1.84 months vs. 139.33 ± 3.25 months). For the elderly patients (>80 years), the PCSS outcomes were significantly worse than the control group (65-66 years) in both overall cohort (HR: 2.69, 95% CI [2.31-3.13], P < 0.001) and matched cohort (HR: 1.61, 95% CI [1.34-1.94], P < 0.001). Patients receiving RP treatment had similar PCSS outcomes with those receiving EBRT and/or BT in the high-risk PCa group (139.45 ± 9.98 months vs. 139.41 ± 1.84 months), and better PCSS in very high-risk PCa group (132.73 ± 13.56 months vs. 128.82 ± 3.43 months).

The PCSS outcomes of young PCa patients (<0 years) were identical to those of the control group (65-66 years). RP had similar or better PCSS benefits than EBRT and/or BT in both young (<50 years) and elderly patients (>80 years).

Journal of cancer research and therapeutics. 2022 Apr [Epub]

Kai Ma, Pan Song, Yuxin Qing, Yayin Li, Mengxuan Shu, Luchen Yang, Qiang Dong

Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China., The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu Province, China.

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