Published: Thu, August 10, 2017
Medicine | By Earnest Bishop

More young people dying of colorectal cancer and researchers don't know why

More young people dying of colorectal cancer and researchers don't know why

"While the risk of colorectal cancer remains low among young adults and middle-aged people, the increase of mortality strongly suggest that the increase of the incidence of this tumor result from other factors that of the only early detection", conclude the researchers.

"The thinking has been that the reason we're seeing the increase in this disease is because of the excess body weight we've been dealing with for the past several decades, but the obesity epidemic has affected everyone universally across races and ethnicities and if anything the increase in obesity in the black population has been higher", Siegel said. More patients are cured when the disease is detected early.

This may help explain why women generally have higher levels of empathy and self-control but are also at higher risk of brain disorders like depression, anxiety, and Alzheimer's disease. "And it's scary because we don't know what's causing it", Siegel said.

Among blacks, however, colon cancer deaths declined among every age group. The increase was confined to white individuals, among whom mortality rates increased by 1.4 percent per year, from 3.6 in 2004 to 4.1 in 2014.

Rising death rates in those aged 50 to 54 years likely reflect the aging of more recent birth cohorts, who have higher risk for colorectal cancer, as well as lower screening rates compared with those aged 55 years and older, which were 46% vs. 67% in 2015, Siegel noted.

The study claims that reported cases have increased by 1.6 percent annually in adults younger than 50. Among black individuals, mortality declined throughout the study period at a rate of 0.4 percent to 1.1 percent annually (from 8.1 in 1970 to 6.1 in 2014).

Energy the key to fight climate change
They explain that "There are no convincing alternative explanations supported by the extent of the observational evidence". It projects a near-term rise of temperature in the USA by 2.5 degrees F (1.4 degrees C).

According to a new study from the American Cancer Society, colon and rectal cancer deaths are rising for young adults, under the age of 50- just when you're supposed to start getting screenings. But it should create "a sense of urgency and responsibility not to ignore signs that might indicate colon cancer".

Previous studies haven't examined these younger people, Siegel said.

A representative of American Cancer Society did not immediately return International Busines Times' request for comment. However, the ACS's findings may change the recommended testing age. "It is especially surprising for people in their 50s, for whom screening is recommended, and highlights the need for interventions to improve use of age-appropriate screening and timely follow-up of symptoms".

The center analyzed 214,469 cancer cases at 209 of 425 designated cancer treatment hospitals in Japan that were aware of the survival rates for at least 90 percent of their patients.

Colonoscopy, which is performed by gastroenterologists, is the most common method to screen for colon cancer.

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