Night Work and the Risk of Cancer Among Men Essay - 1

Night Work and the Risk of Cancer Among Men - Essay Example geted men aged between 35-70 years residing in the greater Montreal who had been diagnosed with incident, pathologically confirmed cancer at any major 18 hospitals of Montreal. The study results confirmed earlier studies which had linked night shift workers to increased levels of cancer. However, the study also provided new evidence that had not been well investigated previously, which was the relationship between night work and risks of several types of cancer among men. The results suggested increased risks of cancer sites among men working at night. The results were not tested, since the researchers point out that, â€Å"the absence of duration-response relations, and the very fact of ostensible excess risks across such a wide array of tumour types, might raise questions about the credibility of these ï ¬ ndings and possible methodological artefacts† (Parent, 2012, p. 753). The primary risk of exposure of interest was the relationship between night work and the risk of cancer among men. The study found that there was the existence of a relationship between cancer and night work, although it was not accurately measured. A case study was used to conduct this study of night work and the risk of cancer among men. It involved interviewing men who resided in greater Montreal and who had been diagnosed with various types of cancer in the 18 hospitals in Montreal. The study only focused on male patients who had visited the largest hospitals in Montreal between 1979 and 1985. Out of 4,576 eligible cancer patients 82% of the patients, which total to 3, 730 were successfully interviewed. 81% responded for themselves while the remaining per cent, their spouses acted as the respondents. The study only focused on men who had visited hospitals and successfully been diagnosed with various types of cancer. The selection bias was based on the exposure of interest. The fact that only those men who had been diagnosed with cancer were selected for the study made it qualify for