Your study has pointed out the symptom of a problem created by overreaching laws and media hype, as well as restrictive guidelines that keep chronic pain patients from receiving adequate treatment for their issues.  If you had done your study before 2012, your results would likely have yielded much different results.  Due to the outrageous torturing of chronic pain patients, many have been forced to self medicate or, as many are reporting, commit suicide.

When your options are few and your life has become a 24-hour cycle of pain, you do what you have to in order to get out of bed and move around.  I am certainly not condoning illegal use of any drugs, excessive use of alcohol or misusing prescription medications.  I am merely stating that people left with no life due to pain, will seek a remedy that's possibly worse than the problems you're trying to stop by creating such restrictive guidelines, medical providers will no longer treat patients with chronic pain.