“…Sixteen 41,[44][45][46][47]52,53,[56][57][58]61,62,65,[70][71][72] of the 21 studies 41,43-47,49,52,53,56-58,60-63,65,69-72 (76%) were published between 2011 and 2020. For studies that tracked opioid use up to 6 months postsurgery, 57% (n = 12) were RCTs, 43,44,47,53,56,57,61,62,[69][70][71][72] 29% (n = 6) were prospective cohort studies 45,46,52,58,60,63 and 14% (n = 3) were retrospective cohort studies. 41,49,65 Studies that tracked opioid use <6 months or not at all were similar in study design parameters.…”