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Screening for important risk factors for cancer-specific mortality in patients with localized clear cell renal
Qiang Wang1, Xiaoli Li2, Junnan Xu3
1Department of Urinary Surgery, Peking University People's Hospital; Department of Urology, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.
Aim:
To study the risk factors for cancer-specific mortality (CSM) among patients with localized clear cell renal carcinoma (LCCRC) in the Chinese population.
Methods:
The clinical data of 1,376 LCCRC patients were postoperatively collected to analyze the correlations between CSM and multiple factors using Cox regression analysis. Receiver operating characteristic curves were constructed as per the screened risk factors to identify factors with optimal criticality judgment values, which were then used as the scoring standard for the stratification evaluation of LCCRC prognosis.
Results:
The CSM rate was 5.6% (77/1,376 cases) and the median follow-up duration was 78.1 (60-105) months. Cox analysis revealed that age, tumor diameter, and nuclear grade were associated with CSM. The optimal criticality judgment values for age and tumor diameter using receiver operating characteristic curve analysis were 53 years and 5.8 cm, respectively. LCCRC prognosis divided into low-risk (≤ 2 points), intermediate-risk (3-4 points), and high-risk (5 points) showed CSM rates of 3.8%, 13.8%, and 58.3%, respectively, among patients with more than 5 years of follow-up.
Conclusions:
Age, tumor diameter, and nuclear grade were important risk factors for CSM in LCCRC patients. The scoring criteria including these three risk factors may be an important supplement to the prognostic model of LCCRC in the Chinese population.
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