“…Unit characteristics included unit type, census, bed capacity, average nursing hours per patient day, skill mix (the proportion of RN to non-RN staff for each shift), average length of stay, and the frequency of nursing staffing decision-making. [11] Jones Dependency Tool (PCS -1) 2 Malloch et al, 1999 [12] Third-generation PCS (3PCS) (PCS -2) 3 Perroca & Ek, 2007 [13] Perroca (PCS -3) 4 Davidhizar et al, 1998 [26] Psychiatric PCS (NW -1) [14] Simplified Therapeutic Intervention Scoring System (TISS-28) (NW -2) 6 Miranda et al, 1997 [15] Nine Equivalents of Nursing Manpower Use Score (NEMS) (NW -3) 7 Miranda et al, 2003 [16] Nursing Activities Score (NAS) (NW -4) 8 Mullinax & Lawley, 2002 [5] Neonatal Acuity Score (NW -5) 9 Pyykko et al, 2004 [17] Intensive Care Nursing Scoring System (ICNSS) (NW -6) 10 Sawatzky-Dickson & Bodnaryk, 2009 [18] Winnipeg Assessment of Neonatal Nursing Needs Tool (WANNNT) (NW -7)…”