Exploration on Gleason score variation trend of patients with prostate carcinoma from 1996 to 2019: a retrospective single center study
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abstract
BACKGROUND: Gleason score (GS) is one of the stronger prognostic factors and is integral to the management of prostate carcinoma. Subsequent modifications, recommended by the International Society of Urological Pathology in 2005 and 2014, enabled accurate prediction of prognosis. The present study investigated GS variation trend of patients with prostate carcinoma from 1996 to 2019 and offered an overview of GS changes with age, specimen type, histopathological type and serum prostate specific antigen (PSA). METHODS: One thousand three hundred and seventy-six patients, admitted to Peking University People's Hospital in 1996 to 2019, were divided into 1996 to 2006, 2007 to 2015 and 2016 to 2019 groups. Data, including demographic characteristics, GS, primary and secondary grade and percentage of primary and secondary grade of each group, were collected and analyzed. The population distribution and average of GS was evaluated, after segmented and stratified by age, type of specimen, histopathological type and PSA. RESULTS: The average of age and PSA of each cohort had no obvious change. The average of total GS fluctuated among three cohorts with statistically significant differences. The distribution of age and PSA did not differ among cohorts. The distribution of total and primary GS shifted, with more patients detected as total GS higher than 6 (86.1%), and more primary grade higher than 3 (56.7%) in 2016-2019. After segmented and stratified by age, specimen type, histological type and PSA, the population percentage of GS over 6 was significantly higher in 2016-2019 than 1996-2006 and 2007-2015 in patients aged younger than 80 years (age <60, 89.6%, age 60-69, 82.0%, age 70-79, 87.7%). Patients, aged below 80 years in 2016-2019, were detected with higher total GS. CONCLUSIONS: In the present study, GS in patients with prostate carcinoma showed a upward trend. Primary grade, age, serum PSA and specimen type were the main reasons for GS changing while secondary grade, tissue types and diagnostic criteria influenced less.
