“…In this analysis, the prevalence of back pain was 10.0–76.2% in 17 studies 3,21–23,25,29,30,114,119,126,128–134 (Table 4), neck pain was 5.0–49.0% in 15 studies, 28,29,113,114,119,122,125,127,135–141 shoulder pain was 9.6–48.0% in eight studies, 28,29,113,114,122,138,141,142 and spinal pain was 14.2–66.0% in six studies 116,118,139,143–145 . In studies where a breakdown of pain in different regions of the back was available, the prevalence of pain ranged from 4.0–57.0% for the lower back in 23 studies, 28,114,115,117,119–125,127,130,135–138,141,146–150 3.4–41.3% for the upper back in nine studies, 28,114,122,123,127,130,137,138,141 and 4–35% for the middle back in four studies 125,130,135,151 .…”