“…Global HRQoL (Giaccone et al, 2005;Jatoi et al, 2005;Thatcher et al, 2005;Eckardt et al, 2006Eckardt et al, , 2009O'Brien et al, 2006;Reck et al, 2006Reck et al, , 2012Fennell et al, 2007;Bottomley et al, 2008;Hermes et al, 2008;Rolke et al, 2008;Westerman et al, 2008;Araujo et al, 2009;Lee et al, 2009;Slotman et al, 2009;Le Pechoux et al, 2011;Nagel et al, 2011;Wolfson et al, 2011;Chen et al, 2012;Sekine et al, 2014) was most frequently measured using two items (overall health and overall QoL) in the EORTC QLQ-C30 (n = 13, 62%). In the LCSS, the second most frequently used PRO to measure the concept (n = 4, 19%, Jatoi et al, 2005;Eckardt et al, 2006Eckardt et al, , 2009Chen et al, 2012), global QoL is assessed via a single item.…”