“…Sensitivity and specificity have an inverse relationship: i.e., high sensitivity may be achieved at the expense of low specificity, and vice versa; however, a clinically useful predictive score should combine at least 70% sensitivity, and 70% specificity (Baek et al, 2014;Healey, Haines, 2013). Studies with a testing cut-off of 21 (Baek et al, 2014), 40 (Kim et al, 2007;Sung et al, 2014;Sung-Hee Yoo et al, 2015), 45 (Sung et al, 2014), 51 (Chapman et al, 2011;Kim et al, 2011;Baek et al, 2014), and 55 (Schwendimann et al, 2006) come closest to these values. Watson et al (2016) point to the predictive ability of the MFS to distinguish between high and low fall risk patients.…”