Patient safety is a critical indicator for patient health
(Horn et al. 2005) and is a priority of health-care
management. A 1999 report from the Institute of
Medicine identified the significance of patient safety
resulting in studies investigating methods of improving
patient safety and reducing adverse events, including occurrences of patient injuries during care (Aiken et al.
2002, 2003, Needleman et al. 2002). The issue of
patient safety continues to be an important focus of
study (Schubert et al. 2009, Bae et al. 2010, Teng et al.
2010b).