Abstract
Few studies have assessed the longer-term quality of preventive care in prostate cancer (PCa) survivors. To compare the rates of preventive services among PCa survivors five years before and after diagnosis, to men without PCa. Men enrolled in Kaiser Permanente Southern California with newly diagnosed PCa (2002-2008) were matched 1:1 to men without a PCa diagnosis on age, race, and timing of prostate-specific antigen test (N = 31,180). The use of preventive services, including colorectal cancer screening, diabetes tests, lipid panels, and influenza and pneumococcal vaccinations was assessed 5 years before and after diagnosis (or index date for controls). Relative rates (RRs) of use were calculated for cases and controls separately and compared using Poisson regression, adjusting for comorbidities and outpatient utilization in 2014. Overall, the rates of preventive services were lower among men with PCa vs men without PCa. However, in the 5 years after diagnosis, rates of preventive service use for all services were greater among PCa survivors vs men without PCa (colorectal cancer: RR = 1.05, 95% confidence interval [CI] = 1.01-1.10; lipids: RR = 1.10, 95% CI = 1.08-1.11; hemoglobin A1C: RR = 1.17, 95% CI = 1.14-1.19; glucose: RR = 1.24, 95% CI = 1.23-1.26; influenza vaccine: RR = 1.05, 95% CI = 1.03-1.07; pneumococcal vaccine: RR = 1.03, 95% CI = 0.97-1.09). Delivery of preventive care improved after PCa diagnosis, with survivors receiving comparable preventive care to men without PCa during the five years following diagnosis.
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