Death rates far higher for 'alternative' cancer cures: study

August 18, 2017

People who choose alternative cures for common cancers are up to five times more likely to die compared to those opting for standard treatments, the lead scientist of a new study told AFP Friday.

The risk of death five years after diagnosis "was highest for breast and ," said lead author Skyler Johnson from the Yale School of Medicine in New Haven, Connecticut—5.6 and 4.6 times greater respectively.

Lung cancer patients who spurned surgery, radiation or chemotherapy in favour of herbs and vitamin, homoeopathy, special diets or other unorthodox therapies were more than twice as likely to die over the same period, he reported last week in the Journal of the National Cancer Institute.

Five-year survival rates for remained high—around 90 percent—for both conventional and alternative treatments, but this was not necessarily evidence that the alternative therapies were as effective.

"Prostate cancer usually grows very slowly in the early stages so few people die," Johnson explained by email.

Faced with poor prognoses or painful courses of chemotherapy, which can cause severe nausea and weakness, many cancer patients place their faith in a wide range of treatments dismissed by most medical doctors as useless at best.

These include probiotics, vitamins and minerals; traditional Indian and Chinese methods such as Ayurvedic medicine and acupuncture; homoeopathy and naturopathy; chiropractic or osteopathic manipulation; as well as yoga, Tai Qi and Qi Gong, all of which involve breath control.

Mind-over-matter approaches also include prayer, meditation, and guided imagery, in which one visualises one's cancer in order to overcome it.

Researchers led by Johnson identified 281 people in the United States with the four most common types of cancer—breast, prostate, lung and colon—who turned towards one or more of these unproven treatments when diagnosed.

The team compared their health outcomes with those of 560 other of comparable age, also taking into account race and different health factors.

On average, the first group were 2.5 times more likely to die within five years of diagnosis.

"For several reasons, I believe this may be an underestimate," Johnson told AFP.

To begin with, the data only covered only initial treatment, which means that some of the patients who first sought out alternative cures may have switched to standard treatments as their disease progressed, thus prolonging their lives.

It is also likely, he added, that the non-conventional medicine cohort was heathier, younger and had higher income and education—attributes that translate into better survival rates.

"We don't know the exact number of people that make the decision to pursue alternative medicine instead of conventional cancer treatment," Johnson said.

Patients are reluctant to confide in doctors who are likely to frown upon their choices, he added.

But, he noted, all the miracle cures on offer probably add up to a multi-billion dollar business.

Explore further: Using alternative medicine only for cancer linked to lower survival rate

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