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Correlation analysis of prostate cancer detection rate and prostate specific antigen, age and pathological grading of prostate cancer
Author of the article:Zeng Ke, Huang Gui-shu, Li Jia-quan
Author's Workplace:Zigong First people's Hospital,Zigong ,Sichuan,China
Key Words: Prostate cancer; Prostate specific antigen; Age; Correlation
Abstract:To investigate the correlation between the detection rate of prostate cancer and prostate specific antigen, age and pathological grading in patients with prostate biopsy. Methods A retrospective analysis was made in 232 patients over 50 years in line with the prostate biopsy indicationsin Zigong first people's Hospital from 2009 January to 2015 December. The patients were underwent PSA examination, rectal examination digital and abdominal ultrasound, MRI examination. The detection rate of prostate cancer was calculated, and the correlation between tumor detection rate and age, PSA level and pathological grading were analyzed. Results In this group, 232 cases were diagnosed as prostate cancer in 74 cases, the positive rate was 31.9% (74/232). Among 74 cases, 16 cases (21.6%), cases (32.4%) and poorly differentiated carcinomas (45.9%) were differentiated in 24 cases (34). <4μg/L, 4.1~10μg/L, 10.1~20μg/L, >20μg/L the 4 groups of patients with prostate cancer detection rate was 9.1%, 13.0%, 16.2%, 52.3% respectively, with increasing PSA, prostate cancer detection rate increased significantly and showed a clear upward trend (P<0.001). With the increase of age, PSA is greater, and the difference is statistically significant (Z=-3.328, P<0.001); <60 years、60~69 years、70~89 years、≥80 years the four age groups of prostate cancer detection rate was 11.1%, 23.6%, 40.0% and 46.7% respectively, with the growth of the age, prostate cancer detection rate increased significantly (P=0.011). There was a correlation between the detection rate of prostate cancer and PSA(r=0.376, P<0.001), and there was a correlation between the detection rate of prostate cancer and age(r=0.288, P=0.019). Conclusion With the increase of age and the increase of serum PSA, the detection rate of prostate cancer was also increased.
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