More Bad Data on Rx Opioids from Health Canada
/By Marvin Ross, PNN Contributor
Canadian health officials are still blaming opioid prescriptions for Canada’s overdose crisis. A new report by the Canadian Institute for Health Information (CIHI) that was funded by Health Canada points out that more than 9,000 people died from opioid-related overdoses between January 2016 and June 2018.
“While many of these harms may be due to the use of illicit opioids, such as heroin or fentanyl, prescription opioids are also contributing to the public health issue,” the CIHI report found.
The data the report presents shows significant declines in opioid prescribing, but no evidence that prescriptions are to blame for the overdoses.
For example, the total quantity of opioids prescribed in Canada between 2016 and 2017 dropped more than 10 percent, while the number of prescriptions fell more than 400,000.
From 2013 to 2018, there was an 8% decrease in the number of people prescribed opioids.
Fewer Canadians are taking opioids long-term and the number on daily doses over 50 MME (morphine milligram equivalent) also declined, which is likely the result of people being tapered.
There were signs of aggressive tapering. The proportion of patients taking over 90 MME fell significantly, from 25.7 percent to 16.6 percent. And more people stopped taking opioids for at least 6 months than ever before.
But there was no discussion anywhere in the CIHI report of whether these decreases were medically beneficial for the patients involved -- which surely must be a consideration. Healthcare should be about improving care for people, not just cutting them off.
We do know anecdotally that these changes are making pain care worse. I personally experienced the reluctance to treat pain when I recently cracked a knee cap.
“What about pain control?” I asked the ER doc. Over-the-counter Tylenol was her answer. She said Tylenol 3 – which contains codeine -- would give me constipation, so she would not prescribe it. Anything stronger, she said, would make me fall down and that would not be to my benefit.
The Toradol shot she gave me worked for a few hours. Fortunately, I had some Tylenol 3 at home leftover from a tooth extraction. Thank goodness for dentists, but taking the Tylenol 3 for something other than what it was prescribed for made me an opioid abuser.
Evidence Lacking
As for prescriptions being a significant cause of the crisis, the CIHI report provided a footnote to a report from the Public Health Agency of Canada, which states that illicit fentanyl and its analogues appear to be fueling the crisis. Males between the ages of 30 and 39 were the most prevalent victims of overdose death. Further, 82% of the deaths involved multiple drugs.
What do those figures have to do with chronic pain patients who tend to be older and female?
Here is their proof: In 2016, over 20 million prescriptions for opioids were dispensed, which is equivalent to nearly one prescription for every adult over the age of 18, making Canada the second-largest consumer of prescription opioids in the world after the United States.
That’s an interesting fact, but it does not show that prescribing to people who need analgesics has fueled the increase in overdose deaths. It only means there are a lot of Canadian adults in pain.
They also cite a 2015 survey, which found only 2% of those who had a prescription for opioids misused them. A more recent 2017 survey found that nearly a third of people who used opioid medication did not have a prescription. That proportion increased to almost 50% for teens under the age of 18, and 88% of those were illegal drug users.
As for the source of these unprescribed drugs, the Public Health Agency states:
“There are many routes that allow for prescription opioids to be diverted for nonmedical use, including sharing with family members, ‘double doctoring,’ prescription fraud and forgery, street drug markets, thefts and robberies and Internet purchases, making it difficult to estimate the proportion diverted. Through its surveys, Health Canada found that the most common source of opioids used without a prescription was a family member.”
They have no idea how these drugs get out there and admit there are many routes, but conclude that most come from family members who have a prescription for them.
What proof do they put forth? This is the reference they provide in a footnote to prove something that is contentious and disputed:
“Health Canada. Baseline survey on opioid awareness, knowledge and behaviours for public education research report. Ottawa (ON): Prepared by Earnscliffe Strategy Group for Health Canada; 2017. Unpublished report.”
When they say unpublished, I assume that this report was never submitted to a peer reviewed journal. Or if it was, then it was rejected. Scientific research should be published in peer reviewed journals where a panel of experts in both methodology and subject matter determine if the study is any good and will add to our collective knowledge of the topic. That is how science is advanced.
Regardless, the Earnscliffe report is buried on a government website and they tell us it cost almost $100,000. The report is largely based on an online survey with self-selected participation. Because of this, “no estimates of sampling error can be calculated, and the results cannot be described as statistically projectable to the target population.”
In other words, they cannot claim that any of their findings are valid. Just saying that opioid prescriptions are diverted from family members does not make it true. As the report indicates, even the teens who participated in the survey were conflicted about where illicit prescription opioids come from:
“The most common way of obtaining opioids illegally was from a friend or relative with a prescription, and the most common reason for taking them was pain relief. When teens were asked where they thought people their age get illegal opioids, the most common source was a drug dealer or other stranger.”
So much for the alleged proof that the illegal market is mostly comprised of drugs diverted from legal prescriptions. The findings here are similar to my experience, where I used a prescription given for tooth pain for a knee fracture. If I did not have the pills leftover, I would have obtained what I needed from a relative.
The initial published report went on to disprove their own hypothesis on the role of opioid prescriptions by saying that about 2% of Canadians used illegal drugs in 2015, including the “use of crack, cocaine, ecstasy, speed or methamphetamines, hallucinogens or heroin and therefore was not specific to opioids.”
The Canadian government is simply blowing smoke when it comes to proof that prescribing is fueling opioid overdoses. Canadians can only hope that after the federal election we get a new health minister who is a bit more logical. But I am not holding my breath.
Marvin Ross is a medical writer and publisher in Dundas, Ontario. He is a regular contributor to the Huffington Post.
The information in this column is for informational purposes only and represents the author’s opinions alone. It does not inherently express or reflect the views, opinions and/or positions of Pain News Network.
