“…From the 31 included studies, 14 had a quantitative design, 12–25 nine had a qualitative design, 26–33,41 two reported on a two-part study incorporating both quantitative and qualitative approaches, 34,42 and six employed a mixed methods design 35–40 (Supplemental Table 1, http://links.lww.com/PHM/C344). Studies originated from European ( n = 13), 15,16,18,20,21,23,27,32,33,36,37,39,41 Oceanian ( n = 11), 12,14,19,22,25,26,29–31,38,40 and North American ( n = 7) 13,17,24,28,34,35,42 countries.…”