“…There were fewer men than women in most of the studies. All participants had non‐cancer‐related pain at enrollment with the most prevalent pain conditions being osteoarthritis (k = 15 studies) [16,17,19,22,23,29,30,35,49–51,53,55,66,73], low back pain (k = 15) [12,15,18,27,36,37,57–59,69,70,73,77–79], and postoperative pain (k = 14) [24–26,28,33,34,39–42,44,45,47,67].…”