Being prescribed an opioid for low back pain may keep workers off the job longer, according to a new study from McMaster University. Researchers analyzed 1,442 claims from the Ontario Workplace Safety and Insurance Board and found that workers receiving disability benefits for low back pain were more likely to stay on claim if they received opioids.
The researchers did not establish causation between opioid prescription and a longer time to resolve claims – workers who received opioids may have been more injured and needed the additional time to recover. “On the other hand, adverse effects of opioids on mental and physical function could be the reason,” Jason Brusse, lead study author and assistant professor of anesthesia at McMaster, said in a university press release. Back pain is a common problem among working adults in North America, with a lifetime prevalence of 63% and a point prevalence of 21%. After the common cold, low back pain (LBP) is the most frequent cause of lost time from work. Globally, LBP is the primary cause of years lived with disability.
Brusse recommended additional research on the correlation. The study, which was published Aug. 26 in the journal BMJ Open, was funded by the Ontario Workplace Safety and Insurance Board Research Advisory Council and the Ontario Chiropractic Association.
Access the full study here: http://bmjopen.bmj.com/content/5/8/e007836.full?sid=2934fde8-468c-493c-9b9c-06914e1f0003