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posted by on Wednesday March 01 2017, @04:16PM   Printer-friendly
from the too-much-sitting-on-our-asses dept.

A new study finds that compared to people born around 1950, when colorectal cancer risk was lowest, those born in 1990 have double the risk of colon cancer and quadruple the risk of rectal cancer.

The study is led by American Cancer Society scientists and appears in the Journal of the National Cancer Institute. It finds colorectal cancer (CRC) incidence rates are rising in young and middle-aged adults, including people in their early 50s, with rectal cancer rates increasing particularly fast. As a result, three in ten rectal cancer diagnoses are now in patients younger than age 55.

To get a better understanding, investigators led by Rebecca Siegel, MPH of the American Cancer Society used "age-period-cohort modeling," a quantitative tool designed to disentangle factors that influence all ages, such as changes in medical practice, from factors that vary by generation, typically due to changes in behavior. They conducted a retrospective study of all patients 20 years and older diagnosed with invasive CRC from 1974 through 2013 in the nine oldest Surveillance, Epidemiology, and End Results (SEER) program registries. There were 490,305 cases included in the analysis.

The study found that after decreasing since 1974, colon cancer incidence rates increased by 1% to 2% per year from the mid-1980s through 2013 in adults ages 20 to 39. In adults 40 to 54, rates increased by 0.5% to 1% per year from the mid-1990s through 2013.

Also at The New York Times

Study: Colorectal cancer incidence patterns in the United States, 1974-2013; J Natl Cancer Inst (2017) 109(8): DOI: 10.1093/jnci/djw322


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  • (Score: 4, Interesting) by edIII on Wednesday March 01 2017, @09:41PM (2 children)

    by edIII (791) on Wednesday March 01 2017, @09:41PM (#473540)

    Colonoscopies are typically done under general anesthesia if there is a high enough medical risk that conscious sedation would have to be converted to general anesthesia during the procedure, but that is not decided by the patient.

    You're talking out of your butt :)

    It IS the patient's decision, and in my case, the deciding factors were FINANCIAL. It was IN the operating room that I met my anesthesiologist and he gave me two options. Sedation, but I would be somewhat awake and could remember things or GA in which I would remember nothing. The latter was $350 more dollars.

    I looked at his face, then looked at the wall with Borg-like conduits scheduled up my butthole, then back at this face, then back at the rack, then back at his face, back at the rack....

    Who would want to remember that?! Shit, Doc, you just sold me your services. Persuasive man you are...

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  • (Score: 0) by Anonymous Coward on Thursday March 02 2017, @04:33AM (1 child)

    by Anonymous Coward on Thursday March 02 2017, @04:33AM (#473735)

    If you were in the operating room with an actual anesthesiologist present for the procedure, that means there was enough concern that something could go wrong. Most routine colonoscopies do not have an anesthesiologist present. During an average "non-complicated" colonoscopy (performed in a GI suite, not an OR) a nurse pushes the feel-good drugs, but the GI doc doing the procedure is in charge of the anesthesia. In that case a patient can request GA, but unless there's a real medical reason, severe anxiety, history of difficult procedures in the past it won't be considered. Although, anesthesiologists have pretty much perfected general anesthesia, there are still risks. I have seen patients go into cardiac arrest during induction of general anesthesia (during non-complicated procedures). FYI I'm an internist and routinely care for patients inside and outside the hospital who require the simple colorectal cancer screening colonoscopy every 10 years, or someone in the hospital who has lower GI bleeding.

    • (Score: 1) by anubi on Thursday March 02 2017, @10:33AM

      by anubi (2828) on Thursday March 02 2017, @10:33AM (#473794) Journal

      I know when they rammed me, I got to retching in some sort of gag state.

      They had to put me down pretty fast before I tore myself up with my guts full of their stuff.

      There was nothing much I could do about it. Some sort of gag reflex.

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