Factors associated with PSA testing in men ≥ 50 years in Ireland

Abstract

Abstract Background Ireland has among the highest rates of prostate cancer in the EU, primarily due to widespread PSA screening. PSA screening is not recommended for asymptomatic men. Due to the potential for harm to the patient, and the economic and clinical repercussions for the healthcare system caused by inappropriate screening, this study aimed to investigate associations between PSA screening and sociodemographic, lifestyle, and health-related factors in men ≥50 years in Ireland. Methods A cross-sectional study was completed using data from Wave 4 of The Irish Longitudinal Study on Aging (TILDA), a nationally representative sample of community dwellers ≥ 50 years in Ireland. Participants self-reported having or not having a PSA test to screen for prostate cancer in the previous two years. Variables were entered into a multivariable logistic regression to estimate adjusted odds ratios (OR) for associations between PSA testing and the factors of interest. Results There were 2,426 male participants, with 68% reporting a PSA test in the previous two years. In adjusted analysis, older age (OR 1.78, 95%CI 1.32-2.31), third level education (OR 1.34, 95%CI 1.07-1.69) and a higher household net income (OR 2.14, 95% CI 1.52-3.02) increased the likelihood of PSA testing. Health-related factors positively associated with PSA testing screening were private health insurance (OR 1.89, 95%CI 1.52-2.35), blood pressure measurement in the previous year (OR 8.80, 95%CI 6.06-12.77) and a positive family history of cancer (OR 1.42, 95%CI 1.13-1.78). Conclusions High rates of prostate cancer screening are taking place in Ireland, despite the absence of a population-based screening programme. Men of older age, higher socioeconomic status and who demonstrate health-protective-behaviours have an increased risk of PSA screening. This subgroup of the population should be targeted to increase awareness of the potential benefits and harms of PSA testing. Key messages Rates of PSA screening remain high in Ireland, despite the absence of a population-based screening programme. Increased awareness of the potential harms and benefits of PSA screening is needed.