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Hoar SK, Bang KM, Tillett S, et al. Screening for colorectal cancer and polyps among pattern makers. J Occup Med. 1986;28(8):704-8doi: 10.1097/00043764-198608000-00032.
Hoar, S. K., Bang, K. M., Tillett, S., Rodriguez, M., Cantor, K. P., & Blair, A. (1986). Screening for colorectal cancer and polyps among pattern makers. Journal of occupational medicine. : official publication of the Industrial Medical Association, 28(8), 704-8. https://doi.org/10.1097/00043764-198608000-00032
Hoar, S K, et al. "Screening for colorectal cancer and polyps among pattern makers." Journal of occupational medicine. : official publication of the Industrial Medical Association vol. 28,8 (1986): 704-8. doi: https://doi.org/10.1097/00043764-198608000-00032
Hoar SK, Bang KM, Tillett S, Rodriguez M, Cantor KP, Blair A. Screening for colorectal cancer and polyps among pattern makers. J Occup Med. 1986 Aug;28(8):704-8. doi: 10.1097/00043764-198608000-00032. PMID: 3746494.
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J Occup Med. 1986 Aug;28(8):704-8. doi: 10.1097/00043764-198608000-00032.

Screening for colorectal cancer and polyps among pattern makers.

Journal of occupational medicine. : official publication of the Industrial Medical Association

S K Hoar, K M Bang, S Tillett, M Rodriguez, K P Cantor, A Blair

PMID: 3746494 DOI: 10.1097/00043764-198608000-00032

Abstract

In response to a union request, a cancer screening program was conducted for the Pattern Makers' League of North America. Ten colon cancer cases were detected among the 1,465 white men screened with a flexible sigmoidoscope. The difficulties in obtaining appropriate "expected" numbers were that prevalent detectable preclinical colon cancer is not equivalent to incident disease, and the flexible sigmoidoscope yields results not directly comparable to those of the rigid sigmoidoscope used previously. The "expected" number of cancers was obtained by using an independent estimate of 5 years for the mean duration of the detectable preclinical phase. This implied that the expected number of colon cancer cases should be based on the age-specific incident rates among white men in the next-older 5-year age group and that the annual expected number should be multiplied by five. Therefore, the ten observed cases of colon malignancies represented an approximately threefold increase. For invasive cancer only, there was a slightly less than twofold cancer increase. Fifteen percent of the men had one or more colorectal polyps.

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