“…Of the 29 studies examining registered nurse staffing, 19 reported higher levels of this staff grade and compliance were positively associated (15, 36, 47-49, 56-58, 79, 88, 90, 93, 113, 120, 138, 153-156) , nine reported a null association (16,52,61,65,92,96,124,126,157) and one reported a negative association. (87) Likewise, total nurse staffing levels (all grades of nurse staff) and compliance were positively associated in eleven studies (36,45,51,54,87,110,111,128,153,156,158) , with two finding a negative association (49,111) and three a null association. (37,72,84) The results are similar for nurse aides/care assistants: 15 studies reported higher levels these staff and compliance were positively associated (15,35,37,48,49,51,54,56,58,79,90,126,128,138,154,156) , nine reported a null association (16,…”