“…Ten articles reported on a sample or subsample with a mean age between 65 and 70 years (Bond et al, 2007(Bond et al, , 2010Kerr et al, 2010;Mewton et al, 2013;Neafsey et al, 2011;Nguyen et al, 2008Nguyen et al, , 2013Ruland et al, 2013;Westlake et al, 2007;Zou et al, 2012), 14 articles used a sample or subsample with a mean age between 70 and 75 years (Berman et al, 2013;Hill-Kayser et al, 2011;Homenko et al, 2010;McKinstry et al, 2013;Nahm et al, 2008;Shea et al, 2006Shea et al, , 2009Sheeran et al, 2011;Trief et al, 2007Trief et al, , 2009Trief et al, , 2013Weinstock et al, 2011), and one article used a sample with a mean age of 79 years (Finkelstein et al, 2011). Four articles discussed OHITs based on a single function: three of which were concerned with information provision Sheeran et al, 2011) …”