You should go to https://www.hsbi.de/publikationsserver/download/1359/1360/Grebe%20%282005%29%20-%20Sturzrisikofaktoren%20in%20der%20station%C3%A4ren%20Pflege%20%28Pr%C3%A4sentation%20IKNN%20F%C3%BCrth%29.pdf