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P193 Occupation as a predictor of prostate cancer screening behaviour
  1. Cheryl Peters1,2,
  2. Paul Villeneuve1,
  3. Sabrina Ladak1,
  4. Marie-Elise Parent2
  1. 1Carleton University, Ottawa, Canada
  2. 2Institut Armand-Frappier, Institut National De La Recherche Scientifique, Montreal, Canada


Objectives Prostate cancer (PCa) is the most common malignancy in Canadian men. Frequently, it has minimal health impacts and can go undetected for years. Therefore the detection of PCa is impacted by screening practices that are often related to lifestyle and occupational factors, making it difficult to evaluate their etiologic role. Therefore, we examined potential occupational differences in the likelihood to undergo PCa screening.

Methods Data were from the Prostate Cancer & Environment Study case-control study. Detailed demographic, lifestyle, screening and occupational information was available for 1,994 population-based controls from Montreal, Canada (we excluded cases since all had been screened). We used the longest job held, categorised into 16 groups. Using logistic regression, we modelled the odds of having ever been screened for PCa by job category. We also explored these associations for having a family history of PCa, being a regular drinker, being a regular smoker, marital status, ancestry, education, income, physical activity at work and leisure, age, and body mass index.

Results A total of 1933 controls with complete data were included; 1746 (90%) had ever been screened and 187 (10%) had not. As expected, screening was associated with family history of PCa (OR 2.6; 95% CI: 1.2–5.6), being married (OR 2.0; CI: 1.4–2.8), being older (p < 0.0001), and ancestry (OR for Asian men compared to European: 0.4; 95% CI: 0.2–0.9). Income and education were not significantly associated with screening in the adjusted model. However, compared to men working in management, those working in clerical jobs, primary industries, fabrication, construction and transportation were less likely to have been screened.

Conclusion We found considerable variation in screening behaviours for PCa across different jobs. Future studies assessing the role of occupation in PCa risk should take screening into consideration when investigating occupational exposures as etiologic factors.

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