Changing comorbidity classification patterns at radical prostatectomy during a 10-year period.

Area of Science:

• Urology
• Surgical Oncology
• Health Services Research

Background:

• Radical prostatectomy (RP) patient populations and surgical practices evolve over time.
• Accurate comorbidity assessment is crucial for surgical risk stratification and patient management.
• Consistency in applying comorbidity classifications is essential for reliable comparative studies.

Purpose of the Study:

• To evaluate the temporal consistency of various comorbidity classifications and concomitant diseases in patients undergoing radical prostatectomy (RP).
• To identify which comorbidity assessment tools exhibit stable application over a decade in the context of RP.
• To understand the impact of changing classification standards on patient data in urological surgery.

Main Methods:

• Retrospective analysis of 1,297 patients who underwent RP between 1993 and 2002.
• Comorbidity data, including age and various classification systems, were extracted and assigned to the year of surgery.
• Statistical evaluation of trends using the Cochran-Armitage trend test.

Main Results:

• An increasing proportion of patients aged 70 years or older underwent RP.
• The frequency of American Society of Anesthesiologists (ASA) Physical Status class 3 increased significantly, while class 1 decreased.
• A Charlson score of 1 or greater was assigned more frequently, but trends for a score of 2 or greater were not statistically significant.

Conclusions:

• The application of the ASA Physical Status classification demonstrated significant temporal variability in the RP cohort.
• Cardiac and diabetes-related comorbidity classifications, along with the Charlson score, appeared more stable over the study period.
• Findings suggest differential sensitivity of comorbidity measures to evolving clinical practices and classification standards in RP.