Pattern of vital signs observation sets recorded each hour of the day expressed as a percentage of the total number in that VitalPAC Early Warning Score (ViEWS) group during the 24 h period, categorised by ViEWS value. Pattern of vital signs observation sets recorded each hour of the day expressed as a percentage of the total number in that VitalPAC Early Warning Score (ViEWS) group during the 24 h period, categorised by ViEWS value. Chris Hands et al. BMJ Qual Saf 2013;22:719-726 Copyright © BMJ Publishing Group Ltd and the Health Foundation. All rights reserved.