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Abstract
The relationship between exposure to carcinogenic substances and development of bladder cancer was assessed from a case-control study conducted in North Rhine-Westphalia, Germany. The study consisted of 156 cases with bladder cancer and 336 controls with prostate cancer. The primary focus was the role of polycyclic aromatic hydrocarbons (PAHs), since most individuals were considered exposed mainly to substances in this group. Data were collected from male patients who had applied for cancer rehabilitation treatment. Nominally significant smoking-adjusted odds ratio (OR) estimates were obtained for frequent exposures to bitumen (OR = 2.92, 95% CI 1.32–6.48) and tar (OR = 2.09, 95% CI 1.04–4.21) and an ever exposure to paints (OR = 1.69, 95% CI 1.10–2.61). A frequent exposure to pitch showed a non-significant elevated risk (OR = 3.06, 95% CI 0.77–12.10).
The authors thank the Arbeitsgemeinschaft für Krebsbekämpfung der Träger der gesetzlichen Kranken- und Rentenversicherung im Lande Nordrhein-Westfalen, Bochum, for permission to perform the study and for the logistic support.