December 30, 2016 4:35 pm Report Finds High Mass. Opioid Rehab Drop-Out Rate The fight against the opioid epidemic is far from over. According to a new report, more than half of those who enter rehab never complete their treatment programs. US & World Videos 2:04 Newton dentist office aiming to keep kids comfortable 2:08 Tension grows over campus protests in Boston 1:53 Opening statements begin in the Karen Read trial 2:31 Fallen Billerica Police Sgt. Ian Taylor honored at vigil 2:39 MIT president calls for shutdown of student encampments