“…Six of the studies were from the USA (Cella & Tross, ; Jones, Parry, Devine, Main, & Okuyama, ; Jones, Parry, Devine, Main, Okuyama, et al., ; Parry, Morningstar, Kendall, & Coleman, ; Smith, Crespi, Petersen, Zimmerman, & Ganz, , Smith, Zimmerman, Williams, & Zebrack, ), and one was from the UK (Pettengell et al., ). All studies reported data from a sample with a similar mean age (ranging between 50.3 and 62.7), except Cella and Tross () whose participants had a considerably younger mean age of 31.1 years.…”