Safety devices reduce injuries; ORs lag.
D006801:Humans; D016602:Needlestick Injuries / Q000453:epidemiology / Q000517:prevention & control*; D009741:Nursing Staff, Hospital / Q000706:statistics & numerical data; D016273:Occupational Exposure / Q000517:prevention & control* / Q000706:statistics & numerical data; D009871:Operating Room Nursing / Q000592:standards*; D011482:Protective Devices / Q000706:statistics & numerical data*; D017751:Safety Management / Q000379:methods*; D014481:United States / Q000453:epidemiology